Got a prompt that the expiration date had changed on my credit card. I went into settings update payment and shipping to add a new card but the phone won’t keep the information. It keeps defaulting to the old expired information. I can’t get rid of the old card until I add the new card but iPhone 6 won’t let me keep the new credit card information.
If you can't change your credit card info, contact iTunes Support team using this link:--> iTunes Store & App Store – Get support for various issues
choosing: your country, then Apple ID, then iTunes & App Store. If your problem is not among the options shown there, tap/click on the option “the topic is not listed” and describe your issue.
Regards
Giulio
Disregard. Problem was I needed to enter the entire year, not just the last two digits. As you were!
All is well what ends well :)
Giulio
Cannot update payment information on iPhone 6
