Apple Pay defaults to credit, so you're not able to purchase a money order with it. Pay with your credit card online: Access the SDU website.Select "Parent Paying Support" and follow the prompts to pay with your Mastercard or Visa. What type of money orders do I need? • Postal Money order (from the Post Office) is the only accepted form of payment. Fill in the recipient and your address; for bills, include an account number; sign it; keep proof of payment. We do not accept cash payments at this location. Explore the best banking services with IBC across Oklahoma and Texas. Flexible banking so you can do more at your convenience. Fill out the CA Dream Act Application Instead.