[Fizban]

Yeah...that's just ..off. There's really only three options I can see that an admin should have made there. None of the three are deleting your character and making you start over.

1.) Ignore your name and grandfather it.
2.) Change your name.
3.) If the mud had binary pfiles and couldn't easily change your name, have you make a new character and reimburse it with the previous character's level and stats.