Your credit card on file is used for your Subscription billing and any Marketplace commission charges on your account. You can update your credit card in a few easy steps.
First, click your Business Name in the upper right, then My Account.
Next, click on Account Info and scroll to the Payment Method section.
If you need to edit your current card on file, select the "edit" option located next to your card ending information. Once you have updated your credit card information, select "save" to complete your update/edit.
To add a new card, click Replace credit card. Enter your card information, then select Save Credit Card.
When you are finished, click Save Changes at the bottom of the page.