OP, I suggest you to create a red flag against GP, I will support the flag.
Since it was a written contract with you, I would suggest you to go with flag type 3.
This user violated a written contract with me, resulting in damages.

Start to create the flag against game-protect from here:
https://bitcointalk.org/index.php?action=trust;addflag=874254I will tag him using this post reference and I hope in future no one else falls the victim of game-protect.