To update the credit card currently on file in your account go to My Account >My Account and scroll down to Vendor Information, or click here. Click the blue “Yes” next to Card on File.
Next, click the green “Edit Automated Billing” button.
Clicking the blue “Edit” link will allow you to update the expiration date for the card currently on file.
If you need to update the card number, or billing address, click the dropdown arrow on the right and then “Edit”. You can also delete the card and add a new one.
Click the blue "Save" button.