The salary overpayment resulted because . Please call 1-800-772-1772 or your local field office and we may be able to process your waiver request quickly over the phone.We have identified the following overpayment and are in good faith voluntarily refunding all monies collected in error. In the event I leave employment with this agency, I authorize the overpayment balance to be deducted from my final payroll payment or terminal leave cashout. We inform people about the fact and amount of the overpayment, their right to appeal, and the options to repay or, in some cases, receive waivers for the debt. Write a letter to the Social Security Administration. Tell them how much you can afford to pay each month. We will use your answers on this form to decide if we can waive collection of the overpayment or change the amount you must pay us back each month. A. An overpayment letter is a formal request to repay a debt owed to the Medicare Trust Fund. Payment is due upon receipt of the notice.