I didn't get my ps3 trophies. which i earned! why didn't i?

I just finished beating Assassin's Creed Brotherhood. After the credits, expecting a gold trophy ( for getting the apple of eden/beating the game) a silver for complete sequence 8, and a bronze for completing sequence 9, i didnt get ANY OF THEM. wtf? can someone help me out. i even quit the game, reset my router, and nothing.. help? i dont get it....