That´s my worry extra. First i need to found anyone that i can trust.after i think in another things.
You can trust DirectBet I can tell you that much. The main difference between other sportsbooks and DirectBet is that it is completely anonymous, they don't even ask you to make an account, all you need to bet is just a bitcoin address to receive your winnings and everything from making a bet to receiving your winnings is instant.
Whilst most of the other sites might ask you to register and deposit into the site before you're allowed to play. Other than that there are differences like odds, graphics, withdrawal time, etc.