Good bonuses

I originally joined XM because I heard that this broker offers a deposit bonus. I was looking for a new broker at the time, so I thought 'hey, why not, they seem legit. Now, don't get me wrong, they are legit. They also provide a $30 no-deposit bonus for me. I thought I hit the jackpot. But, when I start generating profits, they suddenly closed my positions, When I asked them why they said that I was violating their terms which I didn't. The customer support doesn't help either and only said that the decision is final. Pfft what an odd bunch.