You must complete Arizona Form 203, Request for Injured. Spouse Protection from Application of Joint Overpayment.You are not making voluntary gifts through means of a refund check-off. An unemployment insurance overpayment is created when a claimant receives more benefits than the claimant is lawfully entitled to receive. This brief but important letter notifies a customer that he or she has overpaid you. It can serve as a very good customer relations letter. Our document template is designed to make the process of writing an "Inform a Customer of an Overpayment" letter quick, easy, and stress-free. A waiver means you are no longer liable to pay back the amount that was waived from your overpayment. The questions on this web page are about the Treasury Offset Program, the program that withholds money to pay for a debt.