I hope you learn your lesson and use escrow for any amounts next time, big or small, I hope you manage to get your mrai back too and resolve the problem
Honestly I don't think he can get his mrai now.. the scammed amount is too big. 0.35 btc is equall to 120$ . I don't think that guy who scammed OP will reback the money or the Mrai. he don't even care if his account get negative feedback from all DT users. because he can easily buy a Hero or a Legendary Member account with that amount and start his work again...
The OP have to forget about his lost and be careful next time.