Just out of curiousity, if you are a non-professional gambler but had a win of say, $20K at the casino, how do you prove it if you didn't get the winnings in cheque form?
At Crown Casino (Melbourne), I believe any winnings in excess of $2,000 must be paid by cheque for electronic gaming machines. Not sure about the tables and if that is the same. I suspect heavy gamblers will have Crown deposit accounts and other forms of ID to play eg Crown signature club