Overpayment refunds of vehicle and business tangible property taxes will be sent within 2 to 4 weeks from the date of the payment or exoneration. 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. Call Inova customer service at 571-472-5750 for assistance with bills from any of our Inova hospitals and the following services. A. Accounts must be filed with the Commissioner of Accounts. Introduction. The Department of Information Technology (Document Management) develops and implements the Fairfax County Public Schools (FCPS) Records. The following letter is sent to clients involved in the security deposit option plan. A copy will be sent to the LDSS for filing in the case record.