Thanks. It says there :

"If you withdraw money before reaching the minimum wagering requirements, your bonus and winnings will become void."

OK so I understand I will lose the bonus if I withdraw. But if I win, is it true that you will also cancel my winnings if I withdraw before clearing the entire bonus ?

Why is that ?

Some Casinos have such a rule when they give you chips to play with, but in your Casino I play with my own money and not with the bonus money. So basically I can't win anything unless I clear the entire bonus