»Can You unregister an unactive player?

Hello, i just wanted to know if u could unregister a player, someone stole my premium account name which its name is : SoLoM , as u can see, he just regisstered with it but never joined the server , also all the servers had been + he dont have any rank or didnt purchase anything before, so basiceley he registered years ago+ he don't open the account+ for sure he forgot the password + he didn't purchase anything before + he stole my premium account name , so could u please unregister him and make me resgister with my premium account? for more secure u can delete all his data from the server + /see him on all the servers and u will know that im not lying he never became online on the server,
Why im asking for that? 1-because i don't want to download 2 launchers this will cause bugs and crashes
2- if im in a premium server and want to go to guildcraft to check something and go back to the premium server i dont have to close the premium launcher and open cracked launcher then close the cracked launcher and go back to premium launcher, over all of that i tried to use a cracked launcher and it asked to delete my .minecraft folder so it can redownload it , which means i have to redownload the .minecraft folder each time i try to open one of the launchers to play, i hope that u understand me
Sorry for my poor english.

 

Sorry we can't unregister players, even if they're inactive. That would be very unfair and wrong. You'll have to use a crack launcher if you wish to continue playing here

~Locked~