The Agency must immediately notify the employee, in writing, of the amount overpaid and the method of recovery. The salary overpayment resulted because .A sample form for an employee to agree to repayment of a wage overpayment error. Use this model communication to draft a notice to an employee regarding necessary actions to correct overpayment of the employee's salary. If you would like to submit an application, please visit our Careers page and complete the electronic Employment Application.