Why does it keep saying my card is declined?
Help! I'm just trying to update my apps but it says I need to log in and update my payment information even though it's all correct it's still declined, what do I do?
iTunes Store: My credit card's security code or zip code does not match my bank's records - http://support.apple.com/kb/TS1646 see also tips in https://discussions.apple.com/thread/4245338
Long thread on security code error with some things that worked for some people - https://discussions.apple.com/thread/2045791
when i enter my security code for my credit card it says its invalid - https://discussions.apple.com/thread/3798384