First, you need to issue a check to your customer using the Accounts Receivable account for the overpayment amount. A guide on how to ask for a refund and get your money back, including sample request for refund letters.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. A statement or letter from the company indicating: (1) Property Index Number, (2) taxpayer's name,. Clearly state the decision regarding the refund. Learn how to reply to customers gracefully on their refund status with these customizable response templates. Over Payment Refund Letter To Customers Template. Click here to search for any overpayments on your PIN.