If the deposit and withdrawal processes for a Casino is smooth, and it is provably fair, then there is no need for them to scam your money... your money will eventually be theirs.
The casino is often making quite a small percentage. Its going to take many games for them to really profit from one customer, the people who gain when one person loses cash is of course the winners in the same game. All the house does usually is charge fees for operating the table and of course their take is never gambled, its more a charge where as anyone can end up unlucky and pay higher amounts for taking risks.
Excessive fees is something else, keep an eye out for that and withdraw winnings to somewhere safe seems a good idea to stop worry