Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hello Daniel Martínez Guerrero,
Good day! Thanks for posting in the Microsoft Community. We are happy to assist you.
If you are the admin only and can’t access your account due to an authentication issue, it is suggested to contact the Data Protection team, because we are from the community team and we are not authorized to reset any user/admin account. The Data Protection Team is the only support team to check and reset accounts. To find the contact number of the Data Protection team, please check Find Microsoft 365 for business support phone numbers by country or region - Microsoft 365 admin | Microsoft Learn or Global Customer Service phone numbers - Microsoft Support. They can also connect you with the Billing support team to sort out your subscription issue.
Thank you so much for your precious time and co-operation.
Sincerely,
Simbarashe | Community Moderator.