AutoSPF has a Billing Portal with your billing information where you can perform actions like:

1. Update your card on file
2. Check and download your invoices
3. View your subscription history
4. View your subscription start and expiry date
5. View your current subscription plan
6. Upgrade your subscription
7. Use a coupon code (if there is any), when you're placing a subscription upgrade

To access the Billing Portal, first click on 'Your Settings' in the left navigator

Next, click the 'Billing Portal' entry in the menu options under the 'Billing' category.

This will bring you to the portal page where you can perform all the functions you need.