A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation
Thank you for letting me know.
In this case, I suggest following the steps I mentioned earlier https://learn.microsoft.com/en-us/microsoft-365/admin/get-help-support?view=o365-worldwide and checking the link I shared for guidance on how to contact Microsoft Admin Support.
You can also create a temporary trial business account and use it to initiate a support request through the Microsoft 365 admin platform, that often helps get a faster response from the support team.
I really hope this information is helpful.
Let me know if you have any further questions or concerns.