To change your payment method on your iPhone, follow these steps:Tap Settings > iTunes & App StoreScroll down and tap Apple ID > View Apple IDEnter your password and tap ContinueScroll down to the Payment Information section and tap EditTap Add a new payment method and choose one of the following: Credit Card, Debit Card, PayPal or Other
The first step is to log in to your account and select the “Your Account” drop-down menu. From there, you can select “Prime Settings” and then click on the “Manage Prime Membership” button.
