Okla. Stat. tit. 21, § 21-142A-5: Restitution form

The district attorney's office shall provide all victims,

regardless of whether the crime victim makes a specific request,

with an official request for restitution form to be completed and

signed by the crime victim, and to include all invoices, bills,

receipts, and other evidence of injury, loss of earnings and out-of-

pocket loss. The crime victim shall provide all documentation and

evidence of compensation or reimbursement from insurance companies

or agencies of this state, any other state, or the federal

government received as a direct result of the crime for injury, loss

of earnings or out-of-pocket loss. The unexcused failure or refusal

of the crime victim to provide all or part of the requisite

information prior to the sentencing, unless disclosure is deferred

by the court, shall constitute a waiver of any grounds to appeal or

seek future amendment or alteration of the restitution order

predicated on the undisclosed available information.