You have been sent a Notice of Action letter that advised you of reason for the overpayment and the amount you were overpaid. 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.Begin the filing process as you would with any other filing and select Request for Refund as the Document Type from the list of options in the drop-down menu. 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. In Benefit Overpayment Services, you can make a payment, view past payments, and set up an installment agreement to make monthly payments. Follow these three easy steps to claim your refund. Reason for refund: Refund Request By:.