Ok, I found this post while browsing the forum:
Hello tasu.
You cannot change your name freely. You can only change it completely when you retire (Going from level 31 or higher back to level 1 - gaining 1 generation and loompoint(s) ).
With the Name Change funtion you can only add/remove clan tags. So if you are named "tasu" at the moment, you cannot change it to "blowchicken123" with this function. You would have to retire.
All Name Changes are accepted or declined manually by the admins, so there is no way to cheat here.
My problem is a bit different.
I used to play with 1 char, currently my old friend_Zaar.
I got him to lvl 27 and stopped.
I started another char after that and played him all the time. His name is Zaar (Gen 6 atm).
So when I read the post, I see that I can rename only to Zaar. But I have that name on my, now main, character already.
Is it possible I get a completely new name?
I mean, I don't mind both characters named Zaar, but not sure if that's even possible O_o