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.You have to tell your credit or debit card company about any error you're disputing within 60 days of when the first statement with the charge was sent to you. Included in this packet is a sample letter of the overpayment and the repayment options. Please review the information provided and select a repayment plan. We have identified the following overpayment and are in good faith voluntarily refunding all monies collected in error. Fill in the amount of the overpayment and the due date. Complete an overpayment computation for each month. Discover how our refund letter to customer template can enhance satisfaction and loyalty, with professional tips for seamless communication. A guide and tips for Ohio Unemployment Appeal Letters, including a sample template, from experienced unemployment attorneys.