In the Memo or "For" section, write "USCIS I-765" and your SEVIS ID number, found in the in the upper left-hand corner of your I-20. You must mail your check, bank draft, or money order together with your benefit request form.To fill out the money order, you will need to "Pay to" U.S. Department of Homeland Security. However, you can file many USCIS forms online. The 'Pay to the order of' line should say 'US Department of Homeland Security' and the memo should say something like 'I-751 application and biometrics'. Use blue or black ink pen to fill out the form. Make sure you have the correct spelling of the person or business. 3. How do I apply for a fee waiver? To apply for a fee waiver, fill out Form I-912 . You must present a photo ID, such as your passport, when purchasing a money order.