December 2015
Suggestion to change username; maybe just once at least? You didn't mention when you asked us what username we wanted that this will be final, and I'm wanting to change mine now and can't (I think).
January 2016
I whole-heartedly agree
February 2016
While I do fully understand why the name is not freely able to be changed in-game, I'm pretty sure you can request a name change from the customer support team but I don't know what restrictions they put on it.
You can contact support for this issue using this link: http://help.ea.com/en/contact-us/new/?product=star-wars-galaxy-heroes&platform=android-phone&subject...