You have to option to connect to link with Facebook , you encourage us to unlink it to prevent us getting hacked, then you state it never really "unlinks" since we've already linked it.
I logged on to get ready for turbo event and come to find out, I was missing 2mil rrc and my top 5 deuce demon. I'm not linked to Facebook nor am I linked to Game Center. Although it's optional, I spend money on a weekly basis for gems when it comes to turf because it's a fun game and I enjoy playing.