I joined a point-system site and upon reaching certain amount of points, you'll be able to withdraw the points. To gain points, you need to do certain tasks. To cut the long story short, I did a task, received my reward points then withdrew all accumulated points. A few days after, maybe after their review, they charge it back. Now, I have negative points. I feel very disappointed. If I will continue, its a long way climb. Seems better if I will just restart.