Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
This forum is just a user to user forum, no-one here has any account access.
Try changing your legal name on your account on this link:
https://learn.microsoft.com/users/me/settings
If you have an exam scheduled, then you may be blocked from changing your name and you should see an error message and a link to contact the Credentials Support to request a name change.
https://learn.microsoft.com/credentials/support/help#how-to-submit-a-support-request