After you add credit or debit cards to Passbook, you can change the default card, update your card information, or remove a card at any time.
A. Change your default card
The first card you add to Passbook is your default card. To change your default card:
1. Go to Settings > Passbook & Apple Pay.
2. Tap Default Card.
3. Choose a new card.
B. Update your card information, addresses, and contact information
You can change the addresses, email, or phone number you use for paying within apps at any time. Go to Settings > Passbook & Apple Pay to update your information.
C. Remove a card
You can remove a card from Apple Pay at any time. Just open Passbook, tap the card that you want to remove, tap , and tap Remove Card.