Changing username

I accidentally changed my user name, when I tried to change it back, it yelled at me saying I can only change my username once. How'm I gonna change it back?

Now when I search profiles I have to search "AlexZhang001", and when I go to my profile it says "AlexZhang2". 

I've changed it back for you.

Thanks so much :) You're my savior

i want to change my username, and am stuck with dragowrath. can you help? i want to change it to cathmir.

Hello, Could I have my username changed from Ziggy_Zugwang to Ziggy_Zugswang please :-)

Ziggy_Zugwang, You should be able to do this yourself by clicking on your username in the upper right side of the screen, then choose the option under your avatar -  change username next to your current username. :)

Hi! By any chance could I have my user name changed from Artur_Vadim to Colonel_Custer. I cant change it any more because I started with something else. I just sucked at choosing a name but now I think this one is funny and good. please pretty please!