Quote from Daal:
I'm more interested in knowing how he was able to get this advantage on the casinos without raising their alarms.
This is a good question, and my answer is that by keep losing. That's why they offered him the 20% rebate, because by his history they knew he would eventually lose.
Since the article is coy about his losses, it is quite possible that he had lost 2 mill (over the months, years) at one casino, before making the big 4-5 mill pay day. Then he walked away....

