Sportsbetting.com Online betting scam that has failed to return both my initial deposits and funds from wagers won Offshore Antigua Nationwide

First this scam tried to cancel my wager after I won!
Then they made it extremely difficult to withdraw funds.
Then they sent me a check that bounced.
Then they said that I had to sent them all sorts of documents proving that their check written on their bank account had bounced.
Then they said that they would accept my bank's documents which I faxed to them.

Then they claimed that the fax did not go through to them although I had a fax confirmation from their fax machine showing that they had received all.
They seem to be hellbent on scamming those who use their site:
Trying to cancel winning bets.
Making it very difficult to withdraw funds.
Sending checks that bounce for insufficient funds (drawn on a US bank)
Placing the burden on their customer to document what is already in their own bank records
Lying about whether or not a fax has been received.
They claim to be licensed in Antigua. I will be writing to their supposed regulator to document why their license should be revoked.

Steve g
Chicago, Illinois
U.S.A.