Can't log into Teams - says phone number is already linked

[stepht]

Hi, 

Need some help please! Have spoken to 6 people in Microsoft support today and no-one has an answer. When I try to log into Teams with my email address, it asks me to provide a phone number. I provide my number and it says I can't use it because it's already linked - but the only account its linked to is mine.... I am at a loss to know what to do!! Do I need TWO phone numbers to be able to use Teams?!! Any help gratefully received!!

[#2]

@stepht Hi, perhaps these articles will shed a light on your issue?

https://support.microsoft.com/en-us/office/change-your-phone-number-or-email-address-ac25973e-ad82-4... 

https://support.microsoft.com/en-us/office/troubleshoot-signing-in-or-up-11d069b4-3f7c-4352-a39e-2c8... 

https://support.microsoft.com/en-us/office/adding-your-phone-number-to-a-microsoft-account-c0fad622-...