I need to delete my old credit card and put new credit card in
Had my card number changed
iPhone SE, iOS 16
Delete your old credit card for what exactly?
If the card was added to the Wallet app, for Apple Pay it should automatically update if the option is supported by the card issuer or bank.
If you added the card to your Apple ID to make payments on subscriptions such as iCloud or iTunes and App store purchases, then you can update it by following the steps in the link below.
click here ➜ If you need to change or update your Apple ID payment method - Apple Support