My account got hacked and someone put a credit card in that isn’t mine. My Apple ID won’t let me delete card. How do I get it off my account
Fraud card on account
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
If you can't remove it contact iTunes Support : http://www.apple.com/support/itunes/ww