How do I update my paying method without making a purchase?
No purchasing
[Re-Titled by Moderator]
iPhone 8 Plus, iOS 15
Question marked as
If you are adding a new card, you may need to add the new card first, before you can delete the old card.
For your Apple ID account:
How to: Change, add, or remove Apple ID payment methods - Apple Support
or
For Apple Pay:
Change or remove the payment cards that you use with Apple Pay - Apple Support