How To Write A Letter For Overpaid Unemployment . Overpayments of unemployment benefits occur when someone received benefits that they are later found to have been ineligible to receive. I provided you with the details of my dismissal in appeal. Download free software Nj Unemployment Appeal Letter Template softwareut from softwareut272.weebly.com In most cases, you will be asked to repay the overpayment. This letter is being written to inform you that we have seen overpayment in your payroll. Pua appeals also require the correspondence id number.