Dear friend
i am not deep in top eleven but i can supply u a little by using my knowing got from my playing life and from my friend saying ...
first u can not remove T11 register on your Facebook but it may be if you don't play in T11 at least 4 months because the player in your team leave out and your team have not player to play the match and the another is u can play without registering on Facebook ... it is " let me play " in T11 ... it working by the way of registering your phone ID but u can't play this team the other phone , PC and other thing ... Try and get happy by playing in T11 ... thank ...