Sole Azure/Entra administrator locked out – MFA reset / Tenant Recovery required

I can successfully authenticate with my Microsoft/Hotmail username and password.

My Azure/Entra identity appears as a guest/external account in the tenant (#EXT#).

After entering my password, Microsoft requires MFA. When I select Sign in another way, the only options available are:

• Approve a request in Microsoft Authenticator • Use a verification code from Microsoft Authenticator

I never successfully configured Microsoft Authenticator for this tenant and therefore cannot approve the request or obtain a verification code.

There are no SMS, phone, email, or other authentication methods available.

I cannot access Azure Portal or the Entra Admin Center to reset the authentication method.

This tenant contains a production Azure subscription with websites and active users.

Please help escalate this to the Microsoft Data Protection / Tenant Recovery team so ownership can be verified and the MFA/authentication methods can be reset.

I can provide subscription billing records, DNS/domain ownership, payment history, tenant information, and other proof of ownership privately.

Please do not ask me to post Tenant ID, Subscription ID, payment information, or other sensitive information publicly.