Where do i change the credit card for my iphone on the appstore?

I bought something on my iphone with what i thought was my credit card but i checked my balance afterwards and saw that the balance hadn't changed. So that means it's charging someone elses card and not mine. How do i change what card it charges?

You first need to know what apple ID is associated with which "apps" you've downloaded or purchased.

You could have multiple apple ID's… A friends, a parents, anyone that was on your phone that may have logged in.

Then once you know what you apple ID is, login with it and you can see all your account settings. There you will find out what is going on.

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