Making Payments on an Overpayment​​ Payments towards overpaid UC benefits may be completed online at benefits.uc.pa. If you made a payment in the past 90 days and believe you have not received credit for it, call Benefit Payment Control at 717-787-4621 for assistance.If for any reason the overpayment can't be entered into ARRC, the CAO must complete the OIG 189 to refer the overpayment. This chapter deals with state law provisions identifying, establishing, and collecting overpayments. All states have provisions addressing these matters. If they did in fact overpay you, then yes, they're legally entitled to get that money back. Pennsylvania is directly reaching out to employers to try and "claw back" money that has been sent out to former employees. How do I apply for a refund if I overpaid my nonresident withholding tax?