Cancel credit card on iTunes
I have too many iTunes charges
need to take off credit card !
help
iPhone 6s, 9
Question marked as
Changing/removing payment info : Change or remove your Apple ID payment information in the iTunes Store - Apple Support
If you don't get the 'none' option on the payment details screen : Why can’t I select None when I edit my Apple ID payment information? - Apple Support
Obviously that won't stop any subscriptions that you have