From the Home tab, tap the Account icon.
Scroll to and tap Manage payment methods.
To switch between accounts, tap either Wireless or Internet, located at the top of the scroll.
Tap New credit or debit card.
You can also delete stored payment methods by tapping Edit next to the desired payment method and then tap Delete this payment method.
Enter in your card information, then tap the Store this payment method checkbox.
Enter a card nickname, then tap Continue.
You've completed the steps!
