Ill. Admin. Code tit. 50, § 9015.60
c) If the electronic filing is not filed with the Commission for any of the causes listed in this subsection (c), the Commission may, upon satisfactory proof, enter an order permitting the document to be subsequently filed effective the date the filing was first attempted. The causes the Commission may consider in making this decision are:
d) In case of a filing error, absent extraordinary circumstances, anyone prejudiced by the Commission's order to accept a subsequent filing effective as of the date filing was first attempted shall be entitled to an order extending: