Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi Bill,
If this is an old personal Microsoft account created using your company email address, Microsoft requires you to be able to sign in before you can close the account.
Since the recovery form hasn't been successful, try Microsoft's Sign-in Helper first. It checks the account and directs you to the available recovery or support options.
Microsoft Support also states that support agents cannot manually reset passwords or change account details to bypass the account verification process.
Official references:
- How to close your Microsoft account
- Microsoft Account Sign-in Helper / Support
- Help with the Microsoft account recovery form
Because you're also experiencing SSO problems with applications using your company identity, I would involve your organisation's IT/identity administrator as well so they can investigate that side separately.
Hope this helps you, all the best.
David S