I tried out Bet King today. 293 bets. 293 losses. I won't be back.
You didn't mention what you set your chance to win on, that explains a lot.

Not all of my bets were at that multiplier and you know it fool.
I decided to try again, this time tried blackjack and lost everything, completely unfair and rigged.
I then deposited again, making another new account, and played the slots. I have never in my life played before and not won a single thing on a slot machine. It always at least lets you win a little bit of your bet back. I won NOTHING>
I have never won anything on this casino, it's a complete rip off and a scam. I'm going to go evaluate the provably fair system now and I'm sure I'll find the reason why it's not fair and post that evidence here shortly.
DONT WASTE YOU MONEY THIS CASINO IS A SCAM
Hint: It uses the same provably fair system as Just-Dice and Prime Dice and many other dice sites.