OPINION
¶ 1 Mother Mary Ann Agüero appeals the trial court’s post-divorce decree order determining she is not entitled to certain back child support from Father Manuel Agüero, Jr. The issue on appeal is whether the trial court erred when it allowed Father to assert the equitable defenses of laches, waiver, and estoppel to Mother’s claim for child support arrearages. After a review of the facts and applicable legal authorities, we find that it did. Accordingly, we reverse the trial court’s order and remand the matter with instructions.
¶2 Father and Mother married in 1965 and divorced in September 1987. Four children were born of the marriage, three of whom were minors at the time of the divorce. Upon divorce, Mother was awarded custody of the three minor children, and Father was ordered to pay child support in the amount of $600 per month. It is undisputed that Father never paid the entire $600 per month in child support.
¶ 3 Other relevant facts are as follows. In 1988, the Oklahoma Department of Human Services (DHS), on behalf of Mother, filed an application for contempt citation and requested that an alleged arrearage of $6,340 be reduced to judgment. Father was served notice by mail in Texas but did not appear, and a bench warrant was issued. However, no hearing was held nor was a dispositional order as to this contempt citation made, except that the bench warrant was recalled in 1994.
¶4 Father continued to provide Mother with some child support, but only on an irregular basis and never in the $600 per month amount specified in the divorce decree. Therefore, in August 1997, DHS again filed an application for contempt citation, this *1090 time alleging child support arrearages of $44,650 (including interest), and requesting that the same be reduced to judgment. Thereafter, in December 1997, Father filed a motion to modify custody as to one of the two children who were still minors and an application to enter a temporary order abating child support until resolution of the custody matter. A hearing on the issues was set for January 21,1998.
¶ 5 Prior to the hearing, the parties resolved the child custody and prospective child support issues. At the hearing, the application for contempt citation was amended to a motion to reduce the child support arrearag-es to judgment.
¶ 6 During the hearing, the parties offered slightly different testimony relating to Father’s previous child support payments. Mother claimed she had received a total of $26,175 of the $52,800 child support which should have been paid for the period of September 1987 to January 1998 as specified by the divorce decree, leaving a delinquency of $26,625, excluding accrued interest. Father claimed he had paid a total of $30,000 child support, leaving a delinquency of $22,800, excluding accrued interest.
¶ 7 Although Father acknowledges Mother never expressly agreed to accept an amount of child support less than the amount ordered by the decree, he testified Mother never told him there was a problem with not paying the full amount of child support. Mother contends she never expressly or impliedly agreed to accept any lesser amount of child support. When asked about her previous attempt to collect the child support ar-rearages through DHS, Mother stated “the reason I dropped it was because I had my three children I was trying to raise. I would — When I did get a check, I would have to bring it up here, I’d have to wait another week. At the time when I got the check, I needed it then.” Mother also testified that she didn’t hire a lawyer to take Father back to court to collect back child support because she didn’t feel like she could afford it.
¶8 During closing statements, Father’s counsel, asserting Mother had consented to receiving less than the $600 per month specified in the divorce decree, asked the trial court for “equitable relief.” Citing
Kissinger v. Kissinger,
¶ 9 On January 26, 1998, the trial court issued an order granting Mother judgment in the sum of $3,150. In arriving at this figure, the court applied the law of waiver and equitable estoppel to limit the amount of accrued child support Mother could recover. Mother now appeals the judgment.
¶ 10 In prohibiting Mother from collecting the full amount of past due child support, the trial court allowed Father to invoke the equitable defenses of waiver and estoppel. The preliminary question of whether such defenses are available in an action for collection of child support which has become a judgment by operation of law pursuant to 43 O.S. Supp.1998 § 137 is a legal question.
1
Contested issues of law are reviewable in all actions, suits, and proceedings by a de novo standard.
Weeks v. Cessna Aircraft Co.,
¶ 11 On appeal, Mother argues the trial court incorrectly applied equitable principles of waiver and estoppel in determining the amount of Father’s child support arrearage.
*1091
To adequately evaluate Mother’s argument, a detailed analysis of the three seminal Oklahoma cases is necessary:
Kissinger v. Kissinger,
¶ 12 In
McNeal,
the parties divorced, mother received custody of the two minor children, and father was ordered to pay child support.
McNeal,
¶ 13 The facts of
McNeal
presented a question of first impression: “should a father, ordered to pay $150.00 per month child support, be allowed a credit against an ar-rearage in child support for the time when the children were living with him, although the original divorce decree had not been modified.”
Id.
at ¶ 1,
¶ 14 Therefore, the Oklahoma Supreme Court held, “In the case at bar, the equities would permit [father] to receive credit for the payments made by him during the time his children lived with him.”
Id.
at ¶ 13,
If 15 Relying on
McNeal,
several years later, the Oklahoma Court of Civil Appeals decided
Kissinger v. Kissinger,
¶ 16 Father then requested the divorce decree be modified to grant him custody of the older child.
Id.
at ¶ 1,
¶ 17 On review, the court of appeals phrased the issue thus: “What we have is simply a question of whether the woman waived her right to enforce the order, or, more precisely, whether by agreement, acquiescence or assent, she waived her right to the indebtedness she now claims is due her.”
Id.
at ¶ 21,
¶ 18 The court’s decision appears to rest on two conclusions drawn from its interpretation of
McNeal:
first, that “[rjelief from a support order can ... be granted the noncustodial parent if to deny it would be inequitable”; and, second, that “[t]he thrust of
McNeal
appears to align Oklahoma with a majority of American jurisdictions and England which observe the general rule that in proceedings to enforce an order for child support various defenses are available to the obligor such as laches, estoppel, waiver, acquiescence, release or agreement.”
Id.
at ¶¶ 18-19,
¶ 19 First, the
McNeal
supreme court did not contrive any broad equitable exceptions for “granting relief from a support order” as deduced by the
Kissinger
court of appeals. Rather it held only that, “[i]n the case at bar, the equities would permit [father] to receive credit for the payments made by him during the time his children lived with him.”
McNeal,
¶ 20 In a few words,
McNeal
does not support the far-reaching conclusions announced in
Kissinger. McNeal
simply gives trial courts the equitable “flexibility” of crediting direct or alternative support to the children by the noncustodial parent. It did not even consider, let alone approve, the operation of equity to excuse or give relief to a noncustodial parent for
noncompliance.
As stated in the
Kissinger
dissent, “It is a far leap from [the
McNeal
proposition] to the tenet that a mother should be estopped from recovering an arrearage representing an extrajudicial reduction in father’s court ordered child support payments to which she grudgingly agreed.”
Kissinger,
¶21 In
Thrash v. Thrash,
f 22 The trial court found father not guilty of indirect civil contempt, but entered judgment against father for the arrearage. On appeal, father argued that, since mother made no attempt to enforce the automatic increases in child support based on his gross salary from the time the parties were divorced until 1987, the equitable doctrines of waiver, estoppel, and laches should bar mother’s recovery of the arrearage.
Id.
at ¶ 9,
¶ 23 In reaching this decision, the supreme court made only one general statement regarding the availability of equitable defenses, a statement not essential to its ultimate holding in the case. The supreme court merely commented, “[Father] is correct in concluding that equitable defenses may be invoked to bar the recovery of delinquent child support payments.”
Id.
at ¶ 9,
McNeal allowed a modification based upon the equitable consideration that the former husband, who had been ordered to pay child support for two children, ceased making those payments when the children moved in with him.
Thrash,
at ¶ 9,
¶ 24 Based on our scrutiny of the relevant Oklahoma cases, we cannot allow to *1094 stand the trial court’s conclusion that Mother waived her right to child support. We believe the status of Oklahoma jurisprudence in regard to the interposition of “equitable defenses” in a child support collection action is still limited to the facts and holding of McNeal: a child support obligor may be given some form of credit against an arrear-age for alternative compliance with the support order. Nothing in the subsequent case law convinces us that McNeal’s equitable recognition of “alternative compliance” has been, or should be, expanded to include the divergent concept of “noncompliance due to laches, estoppel, waiver.”
¶25 In addition to being supported by Oklahoma ease law, our conviction that equitable defenses ai*e not available to excuse noncompliance with a support order is clearly supported by public policy. The award of child support is for the benefit of the child. Children are entitled to support from both of their parents, and one parent should not be able to waive a child’s right to support from the other. 6 Recognizing the entire gamut of equitable defenses would afford parents too much discretion in complying with court-ordered support payments by removing the matter from the absoluteness of the court’s decree and subjecting it to parental whims often based upon factors other than the best interest of the child.
¶ 26 Additionally, because the application of equitable defenses is so factually intensive, were we to allow them to justify noncompliance with support orders, they could potentially be raised in every child support collection dispute. Resolution of child support collection issues would then be dependent upon lengthy hearings where parties waged the ultimate “he said, she said” battle. The Kissinger dissent aptly expressed this concern:
Enforcement of extrajudieially modified support would likewise be stripped of the certainty of the court’s decree and replaced with the vagaries of parental memory and motivation. This could certainly work to the detriment of the child involved and may even represent a trap to the paying parent if the court does not subsequently agree that the parties’ reduction or modification is equitable.
Kissinger v. Kissinger,
¶27 Finally, by enacting the Oklahoma Child Support Guidelines in 1989, the legislature illustrated its intent to limit the discretion of the trial court in setting child support obligations. To give the trial court the discretion to consider equitable defenses for nonpayment of the support would undermine the very certainty the Guidelines seek to establish. 7 As a result, public policy mandates ignoring equitable defenses in child support collection actions in order to ensure predictably and protect the rights of children to support from both of their parents.
¶28 Even if we were to hold that the equitable defenses raised by Father were available in this action, they would not entitle him to relief from his child support obligation under the circumstances presented. The facts do not indicate that the elements of laches and estoppel are present. 8 Nor do the *1095 facts of the case demonstrate Mother waived her right to child support.
¶29 Laches constitutes
an
affirmative defense to stale claims.
Sooner Fed. Sav. & Loan
Assoc.
v. Smoot,
¶ 30 The essence of equitable es-toppel is that it prevents “one party from taking a position which is inconsistent with an earlier action that places the other party at a disadvantage, where that party has, in good faith, relied on such representation or position.”
Sullivant v. City of Oklahoma City,
“Equitable estoppel is the result of the voluntary conduct of a party whereby he is absolutely precluded from asserting rights which might have otherwise existed as against a person who, in good faith, relied on such conduct and has been thereby led to change his position to his detriment, and who has acquired some corresponding right. It holds a person to a representation made, or a position assumed, where otherwise inequitable consequences would result to another, who, having a right to do so under the circumstances, has in good faith, relied thereon. Whether the doctrine of equitable estoppel is applicable depends on the facts and circumstances of each case.”
First State Bank v. Diamond Plastics Corp.,
¶31 The elements of estoppel are not present in this case. Mother has made no representation, nor assumed any position upon which Father has detrimentally relied. “Estoppel is used to prevent injustice and promote justice and should not be used to work a positive gain to a party.” Id. Mother has taken no course of action which works an injustice on Father. Being required to pay child support at the level set by the court cannot be considered an injustice. Accordingly, Father cannot raise the defense of equitable estoppel to Mother’s claim for past child support.
¶ 32 “Waiver consists of an actual intention to relinquish a known right, either expressly or by conduct that warrants an inference of such an intent to relinquish.”
Torres v. Torres,
¶33 On the contrary, as indicated by her testimony, Mother’s failure to pursue her contempt action demonstrated only that the DHS process had the effect of delaying her access to the support, which she needed sooner as opposed to later. On the facts of this case, Father is in effect arguing that acceptance of partial payment is tantamount to waiver. We decline to accept this notion. Were we to do so, child support obligors would next argue that, when an obligee doesn’t complain about the timeliness of a payment, it is also waived.
¶ 34 Undoubtedly, child support obligees need child support to provide for their children and the children are entitled to support from both of their parents. When an amount of child support has been ordered by the court, we think it unfair to burden the obli-gee parent by requiring extra affirmative *1096 actions in the collection of the support from the obligor. To give credence to Father’s equitable defense of waiver would have this effect. We believe the better rule is to hold the obligor responsible for the child support ordered in the decree, unless and until, it has been modified by the court. Accordingly, we reverse the trial court’s order and remand for a determination of Father’s child support delinquency without regard to waiver, laches, and estoppel.
Notes
. Title 43 O.S. Supp.1998 § 137 provides: "Any payment or installment of child support ordered pursuant to any order, judgment, or decree of the district court ... is, on and after the date it becomes past due, a judgment by operation of law.” Section 137 further provides that a child support judgment shall not become dormant for any purpose.
. At trial, father testified:
"We discussed the fact that with all the bills that I was having to pay, that I could not manage to pay a hundred and fifty dollars a month per child [as ordered] and continue to pay all the other bills that I was to pay, plus have money for my own living expenses.... I offered that I could pay a hundred dollars a month for each child.... She agreed to it at that time."
Id.
at ¶ 7,
. According to the court, mother's testimony revealed:
Her acceptance of the reduced child support payment was for an indefinite period and there was no agreement that he would later pay the amount of reduction as arrearage. And while she said she "would have assumed that he would have made some offer to ... pay the arrearage,” she did accept the reduced amount "as full payment” up until the older boy began to live with his father.
Id.
at ¶ 17,
. "Equitable defenses” is indeed a broad category including the doctrine of unclean hands, lach-es, estoppel, waiver, acquiescence, agreement, and release.
See generally Thrash v. Thrash,
. In order to present a complete review of Oklahoma law on this issue, we briefly mention two additional cases:
Hyde v. Hyde,
In the more recent case of
Torres,
father asserted the parties agreed to an amount less than the court-ordered child support obligation, and, since he had relied on the agreement to his detriment, mother had waived her right to collect the delinquency.
Torres,
. "Parents have a legal duty to support and educate their children and to prevent them from becoming public charges."
Burrows v. Burrows,
. Eliminating the availability of equitable defenses in collection actions should not inhibit judicial discretion in granting modification or giving credit when an obligor parent has alternatively complied with the child support obligation, such as in McNeal. Allowing alternative compliance provides fairness to the obligor parent without undermining the effectiveness of child support enforcement. See J. Eric Smithburn, Removing Nonconforming Child Support Payments from the Shadow of the Rule Against Retroactive Modification: A Proposal for Judicial Discretion, 28 J. Fam. L. 43 (1989-90).
.Although Father does not use the term "lach-es" in presenting his defense, he does focus on the time delay aspect of Mother’s claim and also relies on
Thrash v. Thrash,
