Did you change the name as requested, if so, did you logout and make a new character with the old name to save it, as you can then rename your main back to it at a later time.
Unless they add that word to the reserved list, then you can still use it, and I typed it in just to check, and it is available to set as a last and even first name.
Unfortunately, you won't get any official response or assistance on this forum.










