A member's billing information is stored in two places in the member profile, these are the payment method card and the billing address card. Here you can update the member's billing information or select another payment method that's already stored on file. 

Payment method

The payment method card allows you to see the card on file for the member as well as the the card's expiration date. By selecting the the edit link you can update the current card or add a new one for future use. 

Billing address

The billing address card displays the member's current billing address. By selecting the edit button you can update this information. You can select from a current address from the member's Shopify profile or add a new one.