I got fooled

Hey, today a guy fooled me during trade, took 2100g few items (Saronite Swordbreakers) and the last moment before i accepted took out (Mechano-hog) and i got left with nothing...... imediatly after he ignored me ang logged out. i have screen shot about his name and chat.

What could i do, at least bann the player if i cant get my stuff, i dont think this kind of behaviour is allowed here....

Make a support ticket in game.
More information about reporting players: http://forum.warmane.com/showthread.php?t=325598