We have identified the following overpayment and are in good faith voluntarily refunding all monies collected in error. There has been an error in your favor!Form TR210 is a letter you receive if: If you received it, you may be entitled to a refund for the tax year stated on the letter. This refund represents the resolution of a disputed claim. Please download the form, complete each field and print. Include the form with your refund so we can properly apply the refund and record the receipt. 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 business may request a refund due to overpayment of tax. The overpayment may be the result of an amended return, audit or more money paid than was owed. If we have identified an overpayment and request a refund, please mail the check along with a copy of the overpayment request letter we sent you.