make another account and act as if you are a desperate girl that just want YOUR games in trade of sexy pics. it worked for me when my friend's account was stolen 
i was Loling
edit : i first told Sony's support thing about it but they toke ages to do it so i did the above, what you basicly do is...
add :Hustle234 w/e , act like you are a girl , play with him for a couple of times (without mic) , and then say "OMG im so bored! " and then act like you wanna know him more, and tell him that you want more games but don't have money and act sad, then tell him you want the games you originally had, and he might give you the account back if he didn't tell him if he did you might send him nude photos , then he will SURELY do it, these kids are desperate
