On September 9, 1999, Thomas P. Davis and Cathy M. Davis obtained a $288,000 adjustable rate mortgage (“ARM”) from the G.N. Mortgage Corporation (“GN”) for the purpose of refinancing prior, non-business personal debts which was to be secured by their home in Manhattan, II. A few months later, GN sold the note to Countrywide Home Loans, Inc. (“Countrywide”). The Davises paid off the 30-year ARM from GN less than three years later, on February 20, 2002, and at that time were assessed over $12,000 in penalties pursuant to the terms of a five-year prepayment penalty rider included in the mortgage document. The Davises objected to the penalty and filed a diversity suit against GN and Countrywide, alleging that -the prepayment penalty agreement was fraudulently obtained, that enforcement of the penalty constituted a breach of contract and that the penalty violated the Illinois Interest Act, 815 ILCS 205/1 et seq., and the Illinois Consumer Fraud Act, 815 ILCS 505/1 et seq. The core of the Davises’ claim is that the parties had agreed to a twenty-four month prepayment rider, but that GN had nevertheless fraudulently induced them into signing one that provided for a penalty if the loan was paid before sixty months had elapsed. The district court granted the defendants- , appellees’ motions for summary judgment on each of the Davises’ legal claims, and the Davises appealed. We affirm.
I. BACKGROUND
On September 9, 1999, Thomas and Cathy Davis (the “Davises”), husband and wife and citizens of the State of Illinois, closed on a $288,000 adjustable rate mortgage loan (the “loan”) with an initial interest rate of 10.9% from the GN Mortgage Corporation in order to refinance personal debt. Aside from the Davises, the only other party present at the loan closing was Patricia Bogdanovich (“Bogdanovich”), the closing agent for TICOR Title Insurance Company, which was the title company authorized by GN to conclude the transaction.
At the closing, which took place at TI-COR’s offices in Joliet, Illinois, Bogdano-vich presented the Davises with two stacks of paper, each purportedly consisting of 24 documents and totaling 43 pages. Included in the stacks were duplicate copies of the proposed adjustable rate note, mortgage, adjustable rate rider to the mortgage, and accompanying documents entitled “Prepayment Penalty Note Ad *874 dendum,” “Alternative Mortgage Transaction Parity Act Disclosure,” and “Notice of Right to Cancel.” Although the Davises admit that they failed to read or compare the two sets of documents thoroughly at the time of the closing, 1 they allege that Bogdanovich told them that the ' stacks were identical in content and accurately represented the agreement between themselves and GN, including a provision setting forth a two-year prepayment penalty period. The Davises signed all of the documents in one of the stacks and Bogdano-vich delivered the signed stack to GN while the Davises retained the unsigned stack for their records. 2
Early in 2000, GN. sold the Davises’ mortgage, including all its rights and obligations emanating from the loan agreement, to Countrywide Home Loans, Inc. Thereafter, in the summer of 2001, the Davises requested that Countrywide apprise them of the amount required to satisfy the remaining balance on their loan as of its two-year anniversary; September 9, 2001. Countrywide responded by informing the Davises that a prepayment penalty of .approximately $12,000 (six months’ worth of interest on the loan) would apply if the loan was paid off prior to the expiration of the five-year prepayment penalty period, according to the signed prepayment penalty addendum in their loan file. This came as a surprise to the Davises, who had no knowledge that they had agreed to a five-year prepayment penalty rider and instead believed that they had signed, and were only subject to, a two-year prepayment penalty clause based on alleged representations by Bogdanovich as well as their own broker. 3
Upon reviewing the unsigned copy of the mortgage contract that they retained from the closing, the Davises discovered two documents which they had not previously read entitled “Prepayment Penalty Note Addendum,” both of which had been *875 drafted by GN. The riders were identical except that one provided for a “twenty-four month penalty period,” while the other provided for a “sixty month penalty period.” The addendum that the Davises signed at the closing was of the “sixty month” species, a fact which they do not dispute. However, the Davises claim that at the closing they signed both a two-year and a five-year addendum. They base this conclusion on the fact that they found a two-year rider in the papers they retained after the closing and that Bogdanovich told them that the two stacks of documents presented at the closing (one signed and returned to GN and the other left with the Davises) were identical. Therefore, the Davises allege that because they signed every document in one of the stacks and found both a five-year and a two-year rider in their stack, they must have signed both versions at the closing; Unfortunately for the Davises though, they are unable to produce a signed two-year agreement. On the other hand, the mortgage companies maintain that the parties never executed a two-year prepayment penalty addendum and that no such rider, signed or unsigned, exists; therefore, the Davises were rightfully charged a penalty when they refinanced before the sixty-month period in the duly signed document elapsed.
On August 23, 2001, the Davises filed a diversity action against GN and Countrywide in the United States District Court for the Northern District of Illinois. In ' their original complaint, the Davises sought a declaration that their loan was ■ subject to either a two-year prepayment ■ penalty period or no prepayment penalty period whatsoever. They also claimed that they were entitled to relief under the Illinois Interest Act, 815 ILCS 205/1 et seq., which, inter alia, makes it unlawful for a loan to provide for a prepayment penalty when that loan has an interest rate in excess of eight percent per annum (the Davis’ ARM carried an initial interest rate of 10.9% per annum) and is secured by a mortgage on residential real estate. 815 ILCS 205/4(2)(a). Before the matter was adjudicated, however, the Davises chose to . refinance their loan at a lower, fixed interest rate with another mortgage company paying Countrywide the contested $12,781.76 prepayment penalty in the process, thereby mooting this portion of their claim. As a result, on April 2, 2002, the Davises sought leave to file an amended complaint, which the court conditionally granted. 4
The plaintiffs filed their amended complaint on May 23, 2002, whereupon the trial judge addressed their failure to properly plead diversity jurisdiction and granted them ten days’ leave to file a second amended complaint to cure the deficiency, which they accomplished. The second amended complaint, 5 filed on May 30, 2002, *876 contained four counts, alleging: (1) that each of the defendants violated the Illinois Interest Act when they imposed a prepayment penalty without an agreement authorizing them to do so; (2) that Countrywide breached the parties’ contract by imposing a five-year prepayment penalty period; (3) that GN through their agent Bogdanovich intentionally committed common law fraud when they misrepresented the terms of the Davises’ mortgage loan; and (4) that GN fraudulently caused the Davises to sign inconsistent prepayment penalty riders, in violation of the Illinois Consumer Fraud Act, 815 ILCS 505/1 et seq.
At the time that the Davises filed their amended complaint, they also sought discovery from the defendants. However, due in part to settlement negotiations and two separate stays issued by the trial judge — one giving the Davises leave to file a second amended complaint and the other allowing GN to file a motion for summary judgment — GN failed to reply to any of the Davises’ discovery requests. 6 However, both of the mortgage company defendants had previously complied with initial discovery requirements in accordance with Federal Rule of Civil Procedure 26(a)(1), and each provided the Davises copies of their respective loan files for the September 9, 1999, transaction. Neither company’s copy of the Davises’ loan file contained a two-year addendum (either signed or unsigned), but both contained a signed, five-year addendum.
On July 24 and July 26, 2002, GN and Countrywide, respectively, filed motions for summary judgment. At this time, the plaintiffs filed an emergency motion to reconsider and vacate the district court’s July 12 order staying discovery pending defendants’ motions for summary judgment and to obtain discovery pursuant to Federal Rule of Civil Procedure 56(f). The trial court denied this motion on July 26, 2002. The district court granted the defendants summary judgment on all of the Davises’ claims on February 13, 2003. We affirm.
II. ANALYSIS
At the outset, we note that in a case where subject matter jurisdiction in federal court is premised on diversity jurisdiction under 28 U.S.C. § 1332, we apply the substantive law of the forum state, here Illinois. See
Merrill v. Trump Indiana, Inc.,
A. The District Court’s Grant of Summary Judgment in Favor of the Mortgage Companies
Summary judgment is proper if the “pleadings, depositions, answers to interrogatories, and admissions on file, together with the affidavits, if any, show that there is no genuine issue as to any material fact and that the moving party is entitled to a judgment as a matter of law.” Fed. R.Civ.P. 56(c). We review a district court’s grant of summary judgment
de novo,
considering “all of the available affidavits, depositions, transcripts, and exhibits in the light most favorable to the non-moving party.”
Driebel v. City of Milwaukee,
The Davises assert that the district court erred in granting summary judgment to the defendants because a genuine issue of material fact exists concerning whether or not they signed a two-year prepayment penalty addendum to their loan at the closing. Premised primarily on Thomas Davis’s two-page personal declaration, the Davises allege that: (1) their loan application originally reflected a proposed, three-year prepayment penalty period; (2) their own loan broker, Boatman, had informed them prior to closing that GN had agreed to a two-year prepayment penalty period; (3) at the closing, the Davises were presented with two stacks of documents by Bogdanovich and instructed to sign one copy which would be returned to GN, while the other should be retained for their (the Davises’) records; (4) while they failed to read and compare these two stacks line-by-line, Bogdanovich, the closing agent, told them that the stacks were identical and represented their agreement with GN in all material aspects, including the agreed-upon two-year prepayment penalty rider; and (5) upon later review, the Davises found that their stack of loan documents contained both an unsigned two-year prepayment penalty addendum as well as an unsigned five-year addendum.
Based on these alleged facts, 7 the Davises argue that a reasonable trier of fact could infer that at the closing they signed a two-year addendum in addition to *878 the five-year addendum discovered in the defendants’ files. Furthermore, the plaintiffs claim that the existente of an unsigned two-year addendum in their records is material to all of their claims renewed on appeal; i.e., it is material to their breach of contract claim because it establishes that the agreed-upon and intended prepayment penalty period under the contract is unclear, and it is material to the statutory and common law fraud claims because it explains the allegedly deceptive circumstances surrounding the obtainment of the prepayment penalty agreement.
1. Breach of Contract Claim
The Davises claim Countrywide breached the September 9, 1999, loan contract by enforcing a five-year prepayment penalty rather than honoring an allegedly agreed-upon two-year prepayment penalty. However; the only evidence of any agreement to a two-year prepayment penalty period, beyond the statements the Davises claim Bogdanovich made at the closing, is an unsigned copy of a two-year prepayment penalty addendum that they (the Davises) received and retained from the closing for their records.
Illinois adheres to a “four corners rule” of contract interpretation, which provides that “ ‘[a]n agreement, when reduced to writing, must be presumed to speak the intention of the parties who signed it. It speaks for itself, and the intention with which it was executed must be determined from the language used. It is not to be changed by extrinsic evidence.’ ”
Air Safety, Inc. v. Teachers Realty Corp.,
Accordingly, our task is to determine whether the loan agreement is fully integrated, clear and unambiguous,
Krautsack v. Anderson,
The loan agreement entered into between GN and the Davises is fully integrated, final in nature, and creates a completed legal obligation between the parties. When viewing the loan agreement in its entirety, we find an uncomplicated set of documents that, when read together, clearly and specifically state that the loan is subject to a prepayment penalty period of five years duration, as provided for in a separately executed addendum. The Davises, in their attempt to establish non-integration, cite to the underlying promissory note, which provides that the borrower has the right to repay the loan at any time without penalty. However, other documents in the agreement,
i.e.,
the one-page prepayment penalty note addendum itself, plainly states that “notwithstanding and provision to the contrary [to language] contained in said Promissory Note or Deed of Trust ... [t]he first sixty months of the loan term is called the ‘penalty period.’ ” GN Mortgage Corporation’s Memorandum in Support of Its Motion for- Summary Judgment, Exh. D. The inherent purpose of the addendum to the contract is to alter the terms of the underlying agreement (here the promissory note) and the existence of such a document can not reasonably be construed as establishing non-integration. Also, the documents comprising the loan agreement were all executed on the same day, contemporaneous with each other and, after reviewing each, we hold them to be internally coherent and fully integrated. In addition, the Davises have failed to present us with any case law to even suggest that the lack of a specific integration clause in the loan agreement, in and of itself, would render the agreement incomplete or unintegrated.
See Eichengreen,
Notwithstanding the clear, comprehensive and integrated nature and language of the loan contract, the Davises also argue that the agreement is facially ambiguous because of the existence of an
unsigned
two-year penalty addendum document in
their
stack of the closing papers. This reasoning is unpersuasive; for the Davises cannot cite their
unsigned
copy of a two-year prepayment penalty rider, the very extrinsic evidence they seek to introduce, to establish that the contract is facially ambiguous thereby requiring the consideration of extrinsic evidence. The introduction of parol evidence .to establish ambiguity in a facially unambiguous, signed, -dated and fully integrated contract is a practice which the Illinois Supreme Court has, to this date, neither condoned nor sanctioned, and accordingly we refuse to do so today.
Air Safety, Inc.,
The Davises argue that we should employ the “provisional admission approach” and consider extrinsic evidence concerning even facially unambiguous agreements. However, in
Air Safety,
the Illinois Supreme Court reiterated the state of contract law and the four-corners rule in Illinois when it stated: “If the language of the contract is facially unambiguous, then the. contract is interpreted by the trial court as a matter of law without the use of parol evidence.”
Air Safety, Inc.,
*881
In all, the entire loan contract, including its five-year prepayment penalty agreement, is clear, unambiguous and fully integrated; rendering extrinsic evidence inadmissible to vary the contract’s terms. The Davises essentially ask us to rewrite the signed and dated contract to include a shorter prepayment penalty period, “but courts are not in the business of rewriting contracts to appease a disgruntled party unhappy with the bargain it struck.”
PPM Finance, Inc.,
2. Common Law Fraud
The Davises, in a separate count of their complaint, go on to allege that GN perpetrated a common law fraud during the execution of the contract, which occurs “where there is a surreptitious substitution of one paper for another, or. where by some other trick or device a party is made to sign an instrument which he did not intend to execute.”
Belleville Nat’l Bank v. Rose,
Under applicable Illinois law, an allegation of fraud must be established by clear and convincing evidence.
Cwikla v. Sheir,
In order to satisfy the reliance element of their claim, the Davises must demonstrate not only that they relied on the GN’s representations regarding a two-year prepayment rider, but that they were justified in doing so.
See Soules v. Gen. Motors Corp.,
Assuming
arguendo
that were we to conclude that the Davises satisfy the other elements of a common law fraud claim
(e.g.,
a knowingly false statement as to a material fact which was proffered to induce reliance), which they do not, the evidence in the record would b'e deemed to be insufficient to establish that any reliance on their part was justified. The Davises’ claim is premised on oral statements allegedly made by the closing agent, Bogdanovich, explaining at the time of the execution of the contract that the mortgage included a two-year prepayment penalty period. However, notwithstanding the alleged statements by Bogdanovich, the Davises had an opportunity and obvious obligation to read the documents before they signed them (as well as up to three days after signing to review and cancel the contract under federal law if they believed the agreement to be flawed). Due to the significance of the mortgage transaction ■ (a $288,000 loan) and the Davises’ preoccupation with the prepayment penalty agreement in particular, they were not justified in relying on the alleged verbal statements alone. The fact is that the Davises certainly had an incentive to independently read' and understand the contract in order to confirm that the terms they were agreeing to,
especially the addendum regarding the prepayment penalty period,
were correctly set forth in the final version of the contract. Their failure to read the prepayment addendum document which they signed is even less justified in light of the fact that, in addition to the ample two-hour closing meeting, the Davises also were made aware that they had a full three-day period in which to review the entire agreement and rescind it if they so decided.
12
Indeed, considering
*883
the multiple obligations which the mortgage document imposed upon them, as well as the amount of money involved ($288,000), the Davises would have been well advised to visit a qualified attorney within that time period to review and fully explain the documents if in fact they had any doubts or concerns over its contents. Nonetheless, because the Davises were “afforded the opportunity of knowing the truth of the representations ... [, yet did] not avail [themselves] of the means of knowledge open to [them, they] cannot be heard to say [they were] deceived by misrepresentations.”
Elipas Enterprises,
3. Illinois Consumer Fraud Act
The plaintiffs also claim that GN’s actions during and surrounding the closing on the loan violated the Illinois Consumer Fraud Act (“ICFA”). In order to be held liable for a violation of the ICFA the Davises must establish that: (1) the defendant undertook a deceptive act or practice; (2) the defendant intended that the plaintiff rely on .the deception; (3) the deception occurred in the course of trade and commerce; (4) actual damage to the plaintiff occurred; and (5) the damage complained of was proximately caused by the deception.
Capiccioni,
The Davises contend that GN deceived them by enclosing both a two-year and a five-year prepayment penalty agreement in the closing documents and representing to them, through their agent Bogdanovich, that the unsigned and undated documents reflected the Davises’ agreement with GN for a two-year prepayment penalty period. They maintain that this resulted in their signing two inconsistent penalty riders, one for five years and the other for two (there is no evidence that a two-year rider was ever signed,
i.e.,
they never produced a signed two-year addendum and their assumption that they did sign one is completely unsupported in the . record). While it is suspicious, and at the very least suggests poor business practices at GN, for the Davises to be given a copy of both a two-year and a five-year prepayment penalty addendum at the closing, the fact remains that they
actually signed
only
*884
the five-year rider. Nowhere in the record do the Davises (nor does anyone else) state definitively that a two-year addendum was signed nor has any such signed addendum been presented to us in the record, much less introduced into evidence. The circumstances surrounding the closing on the loan that the Davises point to as proof of deception, including evidence of Bogdanovich’s alleged misrepresentations, falls far short of rising to the level of sufficient evidence to permit a reasonable trier of fact to find for the plaintiffs on this claim when considering the signed five-year agreement.
See Zemco Mfg. Inc.,
Moreover, when analyzing a claim under the ICFA, the allegedly deceptive act must be looked upon in light of the totality of the information made available to the plaintiff.
See Tudor v. Jewel Food Stores, Inc.,
B. Plaintiffs’ Request to Conduct Additional Discovery
Finally, the Davises claim that it was an abuse of discretion on the part of *885 the trial judge to deny their motion for a continuance to conduct additional discovery. Federal Rule of Civil Procedure 56(f) provides that, if a party opposing a summary judgment motion has demonstrated that it is unable to “present by affidavit facts essential to justify [its] opposition, the court may refuse the application for judgment or may order a continuance to permit affidavits to be obtained or depositions to be taken or discovery to be had or may make such other order as is just.” Fed.R.Civ.P. 56(f). The Davises argue that, had they been allowed extra time to depose their own broker as well as the title company representative present at the closing (Bogdanovich) and various other employees of the defendants — all of whom, according to the Davises’ unsupported representations, they were unable to obtain statements from through their own efforts — that they would have been able to produce evidence sufficient to withstand summary judgment.
“A trial judge’s decision to consider a defendant’s motion for summary judgment before allowing the plaintiff to depose certain witnesses is a discovery matter, which we review under the abuse of discretion standard.”
Grayson v. O’Neill,
Nonetheless, the Davises argued before the district court that, because “a question of fact exists with regard to the location of a two-year prepayment penalty rider signed by the plaintiffs ..., [they] must be allowed to depose all employees, agents, or representatives of defendants ... who had any physical contact with plaintiffs’ loan file.” Edelman Dec. at 2. However, the plaintiffs fail to set forth any specific evidence which they might have obtained from these depositions that would create a genuine issue as to this material fact. The only reason to believe that additional, relevant evidence would materialize from deposing the defendants’ employees is the Davises’ apparent hope of finding a proverbial “smoking gun”- — that is, someone who will testify that he or she knows that a signed, two-year prepayment penalty provision did actually exist at some time and that the defendants have either hidden, destroyed, or otherwise disposed of this document. This, however, is based on nothing more than mere speculation and would amount to a fishing expedition, which is an entirely improper basis for reversing a district court’s decision to deny a Rule 56(f) motion.
Grayson,
The Davises have failed to adequately explain, either in their briefs before this court or in the declaration of their counsel, Daniel Edelman, attached to their Rule 56(f) motion, and it remains a mystery why they failed to acquire an affidavit or deposition testimony from Boatman and Bogda-novich — the two third-party witnesses whose alleged statements are necessary to support the plaintiffs’ belief that they signed a two-year prepayment penalty agreement. According to the Davises, Boatman would testify that she informed them prior to the closing that GN agreed to a two-year prepayment penalty period, while Bogdanovich would state that she watched the Davises sign each document after having told them that the two stacks of documents were identical and conformed to the terms of their agreement with GN.
Assuming that both of these witnesses would need to be subpoenaed before testifying, the plaintiffs had ample time (a total of 74 days of open discovery) to attempt to secure their testimony as well as approach the trial court and demand compliance to their discovery requests if needed.
14
Indeed, neither Boatman (who was the Davises’
own
broker for the loan), nor Bogdanovich (who worked for the title company, that facilitated the closing and delivered the signed copies to GN), is a GN employee. The plaintiffs’
only
explanation for their inability to acquire statements from these third-party sources is a conclusory and self-serving statement alleging that because their mortgage broker and the title agent have existing relationships with GN, they wish not to sour that bond by commenting on the Davises’ closing. However, this speculative explanation for the Davises’ inability to gather evidence from. Boatman and Bogdanovich is feeble at best and, as such, is both inadequate and insufficient to avoid circuit precedent holding that “[w]hen a party fails to secure discoverable evidence due to his own lack of diligence, it is not an abuse of discretion for the trial court to refuse to grant a continuance to obtain such information.”
Pfeil v. Rogers,
Also, we are of the opinion and thus hold that the district court did not commit a reversible error by denying the Davises’ Rule 56(f) motion due to the fact that they have failed to establish they suffered any actual or substantial harm as a result of the denial of their discovery request.
Balderston v. Fairbanks Morse Engine Div. of Coltec Indus.,
328. F.3d 309, 319 (7th Cir.2003). Regardless of what their
*887
proposed discovery might possibly have uncovered, the fact remains , that -the Davises failed to properly examine, the documents they were executing, for if they had, they would have discovered that they had signed a five-year prepayment penalty agreement. Because the harm they suffered was due to their own negligence, .the Davises were not justified in relying on any alleged representations made by GN or its agent and are precluded from now claiming that GN committed fraud. Finally, the Davises have failed to demonstrate that additional discovery would reasonably allow them to establish the deception prong of the Illinois Consumer Fraud Act. The Davises’ justification for a continuance of discovery in support of their ICFA claim is not genuine and convincing,- but barely colorable, especially in light of their burden,
i.e.,
to prove fraud by clear and convincing • evidence,
Twrzynski,
III. CONCLUSION
Because the Davises have failed to establish the existence of a genuine issue of material fact as to any of their claims, and because the defendants are entitled to a judgment as a matter of law on each of those counts, summary, judgment is proper. Fed.R.Civ.P. 56(c). In addition, the plaintiffs have failed to “provid[e] a compelling argument why discovery should be continued.”
Balderston,
Notes
. Indeed, it appears from the record that the Davises failed to thoroughly read and understand the documents they signed until September of 2001, just before they refinanced the loan, at which time they learned that they would be charged a penalty.
. After the closing, either because they were ignorant of it or they had no reason to believe that the terms of the note were any different than they had agreed to, the Davises failed to exercise their right under federal law to cancel the agreement without costs within three business days of signing it.
. The parties agree that GN had initially proposed a three-year prepayment penalty period. Indeed, the Davises' loan file contains a document entitled "Conditional Loan Approval,” containing notation of a three-year prepayment penalty period. That document, however, is not signed. The Davises allege that, prior to closing on the loan, their mortgage broker, Monica Boatman ("Boatman”), represented to them that GN had agreed to a two year prepayment penalty period. However, for purposes of this appeal, we will disregard the statement attributed by the Davises to Boatman that GN had agreed to a two-year penalty period because it constitutes inadmissible hearsay.
See Bombard v. Fort Wayne Newspapers, Inc.,
. Before the district court ruled on this motion, it required that the Davises present documentation supporting their proposed amended complaint. Accordingly, the plaintiffs produced a two-page declaration from Thomas Davis, dated April 19, 2002, that recounted his version of what occurred at the signing of the mortgage contract.
. In response to the district court's concerns over the existence of federal jurisdiction, the plaintiffs properly pled, in their second amended complaint, that they were citizens of Illinois, not merely residents of the state. Neither of the defendants is an Illinois corporation or has the State of Illinois as its principal place of business. There also remained a question as to whether the amount in controversy exceeded $75,000, given that the dispute appears to be over a $12,000 prepayment penalty. However, the plaintiffs’ claim under the Illinois Interest Act sought statutory damages in "an amount equal to twice the total of all interest, discount and charges determined by the loan contract.” 815 ILCS 205/6. Given that the loan amount was for $288,000, diversity jurisdiction was proper.
Cf. McCarthy v. Option One Mortgage Corp.,
*876
. The plaintiffs' initial discovery requests . from October 2001 had been postponed through the. beginning of 2002 because of agreement by the parties to allow for settlement negotiations. Their settlement efforts failed, and on March 20, 2002, the district . court issued a scheduling order that included a discovery cut-off date of July 31, 2002. Accordingly, on April 9, 2002, the Davises ■ served discovery requests on both mortgage company defendants, as well as a notice of deposition for Bogdanovich. The trial judge, however, stayed discovery three days later pending his ruling on the Davises’ motion for leave to file an amended complaint, which the court later granted. The stay was lifted on May 23, 2002, seven days before the plaintiffs filed their second amended complaint.
On July 11, 2002, the Davises' counsel sent a letter to the defendants requesting immediate compliance with their outstanding discovery requests. That same day, GN filed a motion to stay discovery based upon its intention to file a motion for summary judgment. The district judge granted this stay. Thus, throughout this entire pretrial process, the defendants failed to respond to any of the plaintiffs’ discovery requests.
. The Davises also highlight the fact that, at an April 12, 2002, status hearing, one of GN’s attorneys stated that an unsigned, two-year prepayment penalty agreement existed in the plaintiffs' loan file. However, GN’s counsel withdrew this statement at the very next status hearing, expressing to the court and the Davises that his statement had been made in error. In its order granting the defendants summary judgment, the trial judge determined that the statement did not constitute a judicial admission and, therefore, could not go towards creating a genuine issue of material fact as to the existence of a signed, two-year penalty agreement.
.However, even if the Illinois Supreme Court were to adopt the prpvisional admission rule, we do not believe that this rule would apply in situations, such as the one before us, where a party is seeking to introduce a completely new and different term into a facially integrated and unambiguous contract. There is a substantial difference between the interpretation of contractual terms and the addition of supplemental terms which were not contained in the original writing. Although not discussed at length in the case law, the provisional rule would seem only to encompass the interpretation of a contract's term(s), rather than the wholesale substitution of one term for another.
See, e.g., Air Safety, Inc.,
. Even if this court were to "provisionally admit” the two-year, unsigned prepayment penalty rider, we would not be moved to hold in favor of the Davises’ theory of the law. The fact remains that the signed rider states on its face that the term shall be five years. In addition, no signed or unsigned two-year rider was ever found in the Davises’ loan file at GN or Countrywide. There is nothing ambiguous about the terms of the five-year addendum, nor does the existence of an unsigned two-year agreement interject ambiguity into an otherwise unambiguous, cohesive and fully integrated contract.
. The only objective evidence which the Davises have produced in order to establish an extrinsic ambiguity with (their copy of an unsigned two-year addendum) was not supplied by a disinterested third party, but was proffered by the Davises themselves, thus ex
*881
cepting them from the purview of the suggested rule.
See Commonwealth Ins. Co.,
. While the Davises also allege the mutual mistake 'exception to the parol evidence rule before this court, that argument was not made before the district court at summary judgment. As such, it will not be considered.
Coker v. Trans World. Airlines, Inc.,
. The Davises signed and dated a "NOTICE OF RIGHT TO CANCEL" form which alerted *883 them to the fact that they had “a legal right under federal law to cancel this transaction, without cost, within THREE BUSINESS DAYS.” Tr. 42, Exh. E. (Emphasis in original).
. The Davises had also claimed in the district court that the defendants violated the Illinois Interest Act, 815 ILCS 205/1
et seq.,
by imposing a prepayment penalty without an effective agreement to do so. As we have shown, however, there was an effective agreement between the parties — namely, a five-year prepayment penalty addendum. In any event, as the district court correctly pointed out, the five-year addendum was drafted in accordance with the Alternative Mortgage Transaction Parity Act, which preempts the Illinois Interest Act when, as here, a non-federal housing creditor elects to be governed by and complies with federal law. 12 U.S.C. § 3803(c);
see also McCarthy v. Option One Mortgage Corp.,
. While the plaintiffs had issued subpoenas to depose Boatman and Bogdanovich on October 31, 2001, discovery was stayed shortly thereafter by agreement of the parties so that settlement negotiations could occur. That agreed-upon stay remained in effect apparently until the district court’s March 20, 2002, scheduling order. Discovery was not postponed again until April 12, when the trial judge ordered discovery to be stayed until it could rule on the plaintiffs' motion for leave to file an amended complaint. This stay was lifted on May 23, 2002. Afterwards, discovery remained open until July 12 of that year, when the district court again postponed discovery pending its ruling on the defendants' motions for summary judgment.
