Hello Bema,
Thank you for posting question on Microsoft Windows Forum!
Based on the issue description. If you are the sole administrator. You must contact Microsoft Support and request a tenant-lockout recovery case with the Data Protection Team directly via phone. This is the only supported path to verify your identity and have the MFA registration cleared. The steps to do that is as following:
- Locate your region’s support number by visiting the official Contact Microsoft customer support | Microsoft Support page.
-
- Then call the number for your country/region. When prompted by the automated IVR, state "MFA lockout" or "Data Protection Team".
- The Data Protection Team will verify your domain ownership and identity (typically requiring business registration details or DNS verification) before manually resetting your MFA registration.
In case, contacting phone support does not work. You can try to create a temporary trial account solely to open support requests on behalf of the locked account. You can sign up for a new Microsoft 365 tenant by creating a trial subscription here: Microsoft 365 Business Plans and Pricing | Microsoft 365. Once that new tenant is created, you will be able to access the Microsoft 365 admin center and submit a support ticket directly from there. In the ticket, stating clearly that the ticket concerns a different, locked tenant (ddosbema.net) and request transfer to the Data Protection team.
Please note: This is a user‑to‑user support forum. Hence, I do not have the ability to intervene directly or unlock accounts. The above suggested options which might have worked for others in the community.
Hope the above information is helpful!