Need to change credit card

Question

I have Updated My Visa Card and Need to Chnage it to Master card.. Any Help Please

Answer 1

Changing your account information using a computer:
Open iTunes.
Choose Store > Sign In.
Enter your Apple ID and password, then click the Sign In button.
Choose Store > View My Account.
Enter your account password, and click the View Account button.
To update your email address, follow these instructions:
From the Apple Account Information page, click the Edit button to the right of your Apple ID.
Enter your new email address into the Email Address field.
Click the Done button.
To update your name, billing address, or payment information, follow these instructions:
From the Apple Account Information page, click the Edit Payment Information button.
Edit the information that you would like to change.
Note: The payment methods that the iTunes Store accepts can be found in the payment type section. If you do not want a payment method on your account, select None in the payment type section.
Click the Done button once you've updated all of your information.
Changing your account information using an iOS device:
Tap Settings on the Home screen.
Tap iTunes & App Stores.
Tap on your Apple ID. (If you are not signed in, enter your Apple ID and password, and tap Sign In.)
Tap View Apple ID.
Enter your Apple ID password.
To update your email address, follow these instructions:
In the Edit section, tap the Apple ID field.
Tap the Apple ID field.
Enter the email address that you would like to be your Apple ID.
Tap the Done button.
To update your name, billing address, or payment information, follow these instructions:
In the Edit section, tap Payment Information.
Update the information that you want to change.
Tap the Done button when finished.