Just be careful in joining programs on telegram cause mostly of those programs are scam. Always do to a research or ask a professional before making decision especially when it comes into investing were money is involve.
I had one case when I participated in some airdrop during which it was necessary to install a bot in my telegram account. And then, after I was going to remove this bot, it turned out that I could not do it. This bot kept appearing in my account all the time despite the fact that I complained about it, and despite the fact that I tried to stop its activity and block it.