That makes no sense, the problem is is that you are cancelling bets after the events have already ended.
I was looking for possible sportsbook where I can bet and got me interested on that 35% affiliate bonus so I read this thread and end up reading the issue about cancelling bets. Quite unfair if the bets are cancelled after the event, it should be done before the events end. This kind of happening is not inviting for a suppose to be new bettor like me. I hope you fix this problem, for now I think I will follow this thread and watch a bit longer before deciding.