The Tax Office holds unclaimed property tax overpayments made within the last three years and outstanding (uncashed) refund checks. 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. A letter about an IRS refund had one viewer on high alert. She sent that letter to the KPRC 2 Investigates team to ask if it was legit. Ask for a customers statement and do a reconciliation. There are instances where you as the child custody paying parent may send a child support payment that exceeds the court ordered amount. The form asks you to provide a clear statement of the problem you are having. In this statement, include important information and relevant dates. The salary overpayment resulted because . . .