Adda52.com are big cheaters and liers I was useing it since more than one year.
First once when you join it they give many bonuses to induce intrest in the game.
After you built intrest by playing you add money and play lots of time dispite of loseing at first its seems like wining but at last you end up with loseing all your diposited money.
It seems like they have a certain type of algoritms that we lose money at the end.
So be smart and be aware.