If you become a customer on iTunes Store, your credit card information will be saved with your protected password in order to make a future purchases. but if you decided to edit your iTunes account information or remove your credit card information i think you will have to follow our tutorial below.
How To Fix Remove Your Credit Card Details From iTunes ?
Step 1: Open iTunes in your computer.
Step 3: Then Click on your Email address appears at the top right of iTunes and choose Account .as the screenshot below:
Note: we have another method in order to get your account all you have to do is to tap on store at the top left portion of iTunes then choose View My Account, the two methods give you the same result.
Step 4: iTunes will now ask for your Apple ID and password. Input your password and click View Account.
Step 5: You will see now the “Payment Information” inside your Account. Click on Edit.
Step 6: After clicking on Edit, Now select None under “Please Select a Payment method” this choice in order to cancel you Payment method.
Step 7: Your credit card information should be gone now after clicking on Done in order to finalize your action.