Cannot add a card
My card declines my ITunes payment but it will not let me add or remove a card. My edit is in grey letters and I can’t press it when I want to update my payment information.
iPhone 8, iOS 12
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See Change, add, or remove Apple ID payment methods - Apple Support and Payment methods that you can use with your Apple ID - Apple Support. Contact your bank or financial institution to make sure that Apple is able to make the authorization holds that are required to validate a new payment method.
You may find it is possible to update your payment details at https://appleid.apple.com if you cannot do it through iTunes.
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