Clipchamp Essentials and M365 plans
If you're on the new Clipchamp Essentials plan or the plan that is included in your M365 personal or family subscription, when you go to the billing page of your Clipchamp account you will see this button:
Clicking it will take you to your Microsoft account's services & subscriptions page where you can adjust billing settings such as updating your payment method. In addition, please see this article about managing a Microsoft subscription.
Clipchamp legacy plans
We discontinued our other paid subscription plans - Creator, Business and Business Platinum. It's not possible to adjust billing information such as billing name, VAT number, or address for these legacy subscriptions anymore.