Good idea as using your email as an user name is not secure. Selvan should fix this when he is online. You will have to logout and rejoin under the new name.
I edited your post above to reflect the user name you wanted.
Hi Emil T
We have changed the username to emit (sorry, we are unable to select upper-case letters). Please logout and login back with the new username.
If I am not terribly mistaken? PK meant for you to look at (Post #2) where you initially asked for it to be changed to (Emit).
All the Best,