These instructions are specific to iPhone. Android instructions coming soon!
You can manage your credit cards from within the app:
Open the app and log in
Tap the Settings gearbox button in the upper right-hand corner
Select Manage Credit/Debit Cards
Tap to select an existing card or Add New Debit/CreditCard
Scan your card or type in your card information, then tap "Add Card"
To select a default card, simply touch that card. If we have any problems charging your default card, we will automatically try the next one on your account. You can remove cards at any time by swiping your finger across it and selecting Delete. If there are no credit cards associated with your account, you won't be able to pay with your app or redeem your rewards.