Hi James,
If you need to reset your Microsoft business account and would prefer to speak directly with a human support agent, you can contact Microsoft 365 Business Support by phone.
Visit the official Microsoft support page to find the correct phone number for your country and language:
Contact Microsoft customer support
Explain that you need assistance recovering or resetting your Microsoft 365 business account, especially if you're unable to sign in as an administrator.
If you cannot access your administrator account, tell the phone agent that you need business account recovery assistance and ask for the Data Protection team if necessary.