These guys actually lose most of the bets but what they do is manipulate it and ask the chat guys either to return their money or to provide the winning money. They will do that for once or twice but if we ask them repeatedly they are going to ban the accounts.So even though they lose they get their money back until your account is banned so never get in this kind of traps.
Can you specify how it works? I hear about such way of scamming for the first time. How can he ban your betting account? You mean, he will give me money and information, but if he 'll lost, he will complain to betting site, and they refund to him money and block my account or what?