OFFLINE

I dont now why but, y cant have more friend in game, I can add them like friends but cant do it in game  

OFFLINE

normal if you have add peops to facebook and directly check in game to add them then it not goes
you allways neeed to wait some time then you can add them
if it not goes try ask another peops to invite you in game self
if that not goes try to remove friend from facebook and readd him to your facebook friends then retry in game to add him
i had this problem to before and with one of this steps it helped