Yeah.
Show the proof that the guy cheated on your gambling site.
That will show who's really at fault.
I have posted my bet with their chat moderator, isn't it enough to prove that they are not only scammers but low budget scammers.
Can you show the TOS that you are claiming about them Changing the Minimum Withdrawal from .0005 to .001 btc? though in your Proof you shows about them not letting you withdraw but this has been around for long time that a "NEWBIE ACCOUNT" all of a sudden coming out here in Bitcointalk Forum when the promo was first introduce here and I'm sure there is someone whos taking advantage of the give away. Why Not post with your original/Main account.
I'm not against about those being a victim claiming their funds but what made me think always is that almost majority of them are Newbie or newly created account that suddenly POP UP this forum about after being banned or denied of withdrawal.