1.) Once logged in, select the drop-down menu from the upper-right-hand corner of the landing page.
Select “My Account” from the drop-down menu. This will take you to your account dashboard.
2.) Click on the "subscriptions" tab and then view
3.) If you wish to edit an existing payment method that you've previously saved, click change payment.
3.) Input your card number, expiration date, and CVC.
Click on the "Edit card" button to save the details to your account.