Fill in the name of the payee. Instructions for Completing Money Order Inquiry Form.General Recommendations. If you would like to use a check, make sure it has your name and address pre-printed in the top left corner. I'm going to show you how to fill out a money order from the USPS or the United States Postal Service. Make the money order payable to JPay. Cash or credit cards are not accepted. You may fill out the application form in private. Please contact the Central Unit if you would like help. Fill in the recipient's name.