Hiya and welcome to the boards!
The other servers are for the American version of the game. You are subscribed to one or the other, and in your case it's the European version, not the American one.
You should be able to choose a title from level 15 onwards. You should be able to do this at the place where you select new powers and enhancement slots when you level, so the arbiter who is telling you you need to be lv 15 should be the person that allows you to set your new title. If you are level 16 (and have trained yourself to that level) and can't set a title, you should perhaps contact support in-game.
[b][color=blue]Coldest War /[color=red]/ Omega Patient[/b]
[url="http://www.the-cow.net/"][color=red]The CoW Network (Blog) /[/url][url="http://www.collegeofwar.com/"][color=blue]/ College of War[/url]
hi,just wanna ask something,i see on city of villains ,the only 4 servers union,defiant and the other 2,but ive seen a round 10 servers by,other people and another why can i choose a title @ lvl 16 and not 15 ,the arbiter says 15 and i think ive lvlelt @ 16,weird??
bye