Homeowners with outstanding property tax refunds from 4 years or more ago will receive an unclaimed property notice informing them of the outstanding refund. NOTICE OF FOOD STAMP OVERPAYMENT (DEMAND LETTER) (Timely and Adequate). NOTICE.If you were overpaid, you will receive a written notice in the mail. The salary overpayment resulted because . What Is Overpayment? This section contains information on overpayments, lost or stolen debit cards, fraud, and the reporting of fraud. 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. This sample letter has choices to help you build your letter. When you write, pick the words that describe your situation.