Chumba Casino Virtual Holdings Limited Did not pay & asked for my bank account number. San Francisco California

It started out with a $5 promotion that I cashed-out at $100. They wanted documents for "mailing verification & my drivers license. I sent them all kinds of documents but the only thing they could see clearly was my ID. they wanted my bank statememt so, I blocked -out the account number. They came up with all kinds of excuses. Until, they finally asked me for my bank account number. In the meantime, I kept getting other promtions which I never responded. So, they emailed me again asking me not to block out my bank account number. This is the first & only time I have ever used internet gambling. I don't gamble very much at all. But, when I do I go to Winstar. So, this is not about the winnings it is the fraud & privacy policies.