I’ll add.
I have a whale at 7Sultans which has been playing for about 2 months.
Also I believe 2 at Riverbelle and Gaming Club. Gaming Club has kept this guy for 3 or 4 months, the same with Riverbelle.
In August I had one whale at Starluck who deposited >$40k over 20 or so days, then magically stopped playing. *inserts shaver emoticon here *