The client will have 30 days from the date of the Overpayment letter to submit the request and supporting documents. An overpayment may occur when a claimant is paid unemployment insurance benefits and is later found to not be eligible for those benefits.This letter will say if you are eligible or ineligible for the waiver. Create an Overpayment Work Item - Process Steps: Scroll to the Work Item Details section of the page. Select the correct Source from the drop-down list. A Request for Reconsideration can be filled out online. This is SSA's preferred method. Please call 1-800-772-1772 or your local field office and we may be able to process your waiver request quickly over the phone. When you identify a Medicare overpayment, use the Overpayment Refund Formto submit the voluntary refund. To do this, fill out the Request for Change in Overpayment Recovery Rate form.