Download our most commonly requested forms. NOTICE OF FOOD STAMP OVERPAYMENT (DEMAND LETTER) (Timely and Adequate). NOTICE.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. The salary overpayment resulted because . This memorandum serves as notification of an overpayment of wages that you received and the subsequent repayment that is your responsibility. Nassau County's deadline to file a property tax grievance is approximately 18 months in advance of the tax year being challenged, barring any extensions. Our document template is designed to make the process of writing an "Inform a Customer of an Overpayment" letter quick, easy, and stress-free. We have identified the following overpayment and are in good faith voluntarily refunding all monies collected in error.