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. Sample Letter 7.2 was written to a customer who had complained about an incorrect billing that appeared on his charge account statement. In this article, we'll show you how to write a refund request letter template that not only grabs attention but also persuades companies to act in your favor. The salary overpayment resulted because . 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! We have identified the following overpayment and are in good faith voluntarily refunding all monies collected in error. This sample letter has choices to help you build your letter. When you write, pick the words that describe your situation.