Open the Wallet app on your iPhone
Tap the card you want to remove or replace
Tap the More button
Tap Card Details
Tap Remove Card
Tap Add Card to add a new card
Follow the on-screen steps to enter the new card details
Verify the card with your bank if prompted
On Apple Watch, open the Watch app on your iPhone
Tap Wallet & Apple Pay
Select the card you want to remove
Tap Remove Card
Tap Add Card to add the new card
On Mac with Touch ID, open System Settings
Click Wallet & Apple Pay
Select the card
Click Remove Card
Click Add Card to add a new one