Yeah, their website does look really good, and I wouldn't immediately call it an obvious scam.  I mean, someone clearly put in a lot of work and money to make it seem legit. But you know what? Looks can be deceiving. If they're scamming people selectively, like you're saying, they could keep it up for ages. Just like how 1xBit does it.

The dexsport.io account, which had been quiet for a while, suddenly came to life today, probably just after you called out the scam. Maybe now the casino's representative will actually show up on the forum and try to explain these disputed situations.