Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi,
The support must help with billing issues, since this is a user-to-user support forum. See the picture.
Please contact Microsoft Support for further assistance.
Please go to the https://support.microsoft.com/contactus page
Type "Billing" and press Enter.
Please click on the "Contact support" button at the bottom.
Select the Product and Category for support based on your requirements.