Cancel Submit for Review

Our project has hit a bit of a wall and need some guidance on updating credit forms after submitting for review. The project is going for a split review and we prepared all the design credits to be submitted and subsequently clicked submit for review. However, at this time the project was put on hold due to a major design change. As a result, payment for design review was never made. Since the project's design has changed so much we need to update all the credit forms, but obviously this can't be done because LOv3 is saying that the credits are under review. But the review process hasn't started since payment has not been made. Is there a way to reverse/cancel our review stage so we can go back and edit the credit forms? Would appreciate any insight you guys may be able to provide. Thank you.