Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hello, good day and thanks for your question. Sorry to know about this and I understand that you have encountered an issue your Microsoft 365 subscription that has a billing notification.
For this, please try to logout and login again on any Microsoft 365 app (e.g from Word > click on File > Account > Sign out/Sign in or Update License) and see how it goes afterwards.