How to get back my sole admin work account in Microsoft Authenticator?

Question

Dear Microsoft,

I am writing to request urgent assistance with my Microsoft admin account. I am the sole administrator of our organization's Microsoft 365 account, and I am unable to access the admin center due to the following issue:

• My Microsoft Authenticator app account was deleted.
• I am now unable to re-add the account because the app requires a code that I cannot access as I do not have my account in Microsoft Authenticator app anymore. Another option that app provides to sign-in is the 2-digit code that should be confirmed in Microsoft Authenticator app, but again I cannot confirm it as I do not have my account in Microsoft Authenticator app. It does not provide signing in by email, phone or any other option.

I still have my password of account. I don't know if it helps, but my subscription that is being used by my account can be seen from my other account to which I have access and to which I also have an account in Microsoft Authenticator app.

As the sole admin, I am unable to manage our organization's account or access critical functions. I would appreciate your prompt assistance in recovering access to my account.

Thank you for your understanding and support.

Best regards,

Arturs