If you have a non-fraud overpayment for PEUC or FPUC, you can fill out a waiver form to ask the government to "waive" your overpayment. Serving a penalty week and recouping an overpayment cannot be done in the same week.Complete the paper OSIG 189 Overpayment Referral form and obtain the Buy-In amounts overpaid using Data Exchange 7. Salaried employees can use these forms to apply for a refund on Wage Tax. You can also use our online refund forms, for faster and more secure processing. Looking online it says that Non fraud overpayments can be paid through unemployment over the next 3 -4 years. The Claims Overpayment Spreadsheet must be completed for any identified overpayments or improper payments that are to be returned to CBH. Wage Tax refund requests must be submitted through the Philadelphia Tax Center. You don't need a username and password to submit a refund request.