Itunes
Some problems with using my credit card to buy something. If I try to make change about credit card info then it’s said that it can’t be done so ask support/iTunes for help
iPhone 7 Plus
If you haven't already done as instructed and contacted iTunes Support you should do so (these are user forums, not iTunes Support) :
- go to http://www.apple.com/support/itunes/ww
- click on your country's flag (the country where you are, and which is therefore the country on your account)
- click on Contact Support towards the top right
- click on Get Help under 'Talk To Us'