how do I acess itunes to change my credit card details? Thanks

Hello Jaspermax1,

I found an article with steps you can take to update your billing information on a computer or on an iOS device.

You can update the billing information on your iPad using these steps:

Changing your account information using an iOS device:

1. Tap Settings on the Home screen.
2. Tap iTunes & App Stores.
3. Tap on your Apple ID. (If you are not signed in, enter your Apple ID and password, and tap Sign In.)
4. Tap View Apple ID.
5. Enter your Apple ID password.
6. In the Edit section, tap Payment Information.
7. Update the information that you want to change.
8. Tap the Done button when finished.

You can find the full article here:

iTunes Store: Changing account information

http://support.apple.com/kb/ht1918

Thank you for using Apple Support Communities.

Best,

Sheila M.

This only allows you to change your address/phone number. It does not let you change credit card info. It tells you to go to itunes on your computer. That's nice since I dont have a computer.