In order to be successfully submitted, the online application requires an online fee paid using one of the payment methods being offered. Full-fledged Visa, MasterCard, or Discover credit cards are accepted. Some applications will also allow American Express. ATM cards, prepaid credit cards, and debit-only cards are not valid forms of payment.
Paying offline may be an option; however, offline payment will require that you submit your form offline as well. You will need to check with the Admissions office to see what payment methods they can accept with an offline form. Their contact information can be found on the school's website.