To update your billing information, go to your account settings.
Select your avatar in the top-right corner, and choose Settings from the drop-down list that appears.
On the right, under Financials, select Your Purchases.
On this page, you are able to review all the purchases you have made in the specific Academy. You can cancel any active subscriptions, download previous invoices, and update the billing information for your active subscriptions!
To update the billing information for an active subscription, find the subscription in question and click on Update Billing Information.
A box will open where you will be able to add the new billing information. Fill in the needed details, and don't forget to click Save when finished!