I need to change credit card on file
How do I change my credit card on file
Log into your account in the App Store/iTunes and you should be able to change/verify it there. Or you can click the blue Edit payment methods in the article below. When signed in and the page loads, you will be on the credit card page. After updating that, click the Go Back button at the lower left and you will be on the address page.
Apple ID payment information - change.
If necessary, contact iTunes Support. See the Apple Support articles below for contact information.