You would probably have to shoot an email to Virool and ask them why, the admins here are not the one giving out the points, virool is. Like others have said here, there might be a daily or weekly cap on how many you can watch and get points from. Also, you are trying to get points from watching a different video right? I don't think you can get points from watching the same video more than once. If you don't get points from watching a video, or any offer, the first time; then don't try to do the offer again because it is obviously not working.