create a wallet for bitcoin, it is very easy nowadays, there are infinities of sites and applications, in my case use, Cryptonator.com, it is a wallet for multiple cryptocurrencies, BTC, BCH, LTC, DOGE, ETH, DASH, XRP, XMR, ZEC ...
Thanks for the information, very interesting. unfortunately in telegram there are many fraudulent groups and scams, you have to take all possible measures to be safe.