We have identified the following overpayment and are in good faith voluntarily refunding all monies collected in error. Clearly state the decision regarding the refund.Defendants must submit a letter of request along with a refund form to receive a refund for payments made to the Central Violations Bureau. How do I apply for Child Support Services? You can complete the application at your local CSS office or apply online. The salary overpayment resulted because . For purposes of determining interest on an overpayment or refund, no interest will accrue after the Department transfers the payment to Virginia529.