If you get yourself a new credit card and the old information is invalid, you can follow these steps to update or change your credit card information.
Step 1 – Go to the left side menu and click "Account Settings"
Step 2 – Click “Billing Address & Credit Card” on the left side of the page
Step 3 – Scroll down to the bottom of the page to get to the credit card section
Step 4 – Fill in the information required in the “New Credit Card” section
Step 5 - Click on “Save as new credit card” to continue
This action will automatically remove and overwrite your previous credit card information