Notify Employee: The Agency must immediately notify the employee, in writing, of the amount overpaid and the method of recovery. The salary overpayment resulted because .To make repayment arrangements, please contact ____________________ within XX days of the Date of Notice. Open the Application for Refund; you may fill it out online, but then you must print the completed form. Sign the form in the presence of a Notary Public. This guide describes how to process a Notice of Overpayment Adjustment when an employee is overpaid. On January 5, 2021 OWCP received a letter from appellant responding to the preliminary notice of overpayment.