To update your credit card on file do the following.
1. Click on the settings icon.
2. Click on My Account.
3. Click on Billing Info & Credit Card.
4. Click edit billing information.
If you are logged in you can click the image below to go to this location.
After you have updated your card to update an expired subscription. Please do the following.
1. Click on Subscriptions
2. Click on Purchase Again