Ok, so I have to trust you to send you my money for a bet, then you use that money to place the bet in some Asian bookie, and if I win you give me my money back minus your fee. Did I understand correctly?
I would never send my money to strangers via Telegram. Why should I trust you?
one thing is impossible if he will return your money and share the profits, this is a classic fraud, it is better for you to play alone if you lose you know where your money is going,
Regardless whether true or not true about what he promises to do, what is the basis for trusting him with my money, a total stranger for that matter and of all platforms it's telegram which is a place widely known as a harbour for scammers.
There are gambling games that doesn't requires one to have knowledge and skills on it to be able to play, with some luck you good to having a win as chance permits. So making my bets myself and knowing where my money could probably go to is a much better. If I win I win, if I lose I lose. Better to lose a bet than having the feeling of been scammed.