A little bit late, but as it seems I'm not the only one who tried to handle this issue, here is what happened:
At first I thought maybe I had a bad implementation, even though I used the exact code as provided by Facebook for iOS development.
The issue was "discovered" during Apple review, and guess what... The Apple testing geniuses did press the "Don't Allow" button. I had to send them over 5 messages until they finally realized their "mistake". What a waste of time.