Reporting Doyourthang as a Scammer

Explain for the trade: we agreed to that i sell him zynga poker chips and he pays with RSGP.we agreed that i sell him 200million chips first,then he pays,then i do another 300million chips.
after i sent him the 200million chips,he insist that i send him 300million more,i refused,then he went offline after saying that he received nothing

user profile:http://sythe.org/member.php?u=250545
u will see below a proof that i wasnt talking to an imposter

http://imageshack.us/g/99/zynga.jpg/
http://imageshack.us/photo/my-images/39/zyngaa.jpg/

 

Banned.