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 refund letter to a customer should be structured to convey the necessary information clearly, empathetically, and respectfully. The salary overpayment resulted because . We have identified the following overpayment and are in good faith voluntarily refunding all monies collected in error. This memorandum serves as notification of an overpayment of wages that you received and the subsequent repayment that is your responsibility. In this article, we'll provide tips on how to handle refund request letters and 7 sample templates you can use to get started today!