credit cards are NOW required to pay for any outstanding balances (i.e. NRF, ECF, Svcs)
this is as of the april update
It's under section 5 of the customer agreement, paragraph E.
(e) Payment Upon Cancellation. You acknowledge that you have provided your credit or debit card account information to us. You understand that you will incur fees and charges as a result of your receipt and use of Service and/or Receiving Equipment, and may incur early cancellation fees and/or equipment non-return fees (as specified in any lease, programming or other service commitment agreement you entered into in connection with obtaining Receiving Equipment). By giving us your credit or debit card account information, you authorize us to apply this method of payment, in accordance with applicable law, to satisfy any and all amounts due upon cancellation. You further acknowledge that you are required to maintain current credit or debit card information with us and agree to notify us whenever there is a change in such information, such as a change in the card number or the expiration date.