To fill out a money order you need to first fill out the who the payee is, the purchasers information and sign it. Fill in the recipient and your address; for bills, include an account number; sign it; keep proof of payment.1. Buy a money order for the desired amount. 2. Fill in the "Pay to the Order Of" line. 3. Complete the fields below to proceed with your refund request. If you don't have the original copy of the money order or receipt, please fill this form instead. Submit only the complete documents you are requesting the authentication of signature on. (A digital receipt will be sent to the email address provided). Fill out the information and detach the slip below, then send in with your money order. You may mail this application and a check, money order or a Payment Authorization to the address on the form.