Your letter must include your name, address, Social Security number, and why you disagree with the determination. Please complete the enclosed University of California Repayment Agreement and return it within 15 days to your timekeeper, listed above.If you overpay wages and the error is caught immediately, the Labor Commissioner generally allows you to make a deduction from the next payment. Employee consent is required for an overpayment amount to be deducted from a future pay check or remitted via check or credit card. The key is to ensure you have a voluntary agreement in writing with the employee before any deductions are taken.