Additional features, settings, or issues not covered by specific Microsoft Teams categories
Hi MorvenThompson,
I'm Nik, an independent advisor here to assist you with this.
As per the description, it looks like your account password got locked due multiple wrong login attempts.
We would need to involve your Organization IT administrator to unlock the account and reset the password from Admin portal.
Here is the link:
https://support.microsoft.com/en-us/office/rese...
Regards
Nik