WASIMJEE.COM is into Web Services from 2007.
It's not new, and for confirmation you can check the whois details of the site.
I can confirm this. Here is an archive for the website going back to 2006:
http://web.archive.org/web/20060329194454/http://www.wasimjee.com/However, I couldn't find any link on that website that proves that the bot was really made by them!
If you are specialised in webhosting services why not running your website instead of using a Telegram bot that no one will trust?
Yes they should prove that they are associated with wasimjee site, as anyone can just choose random domain then create an account in this forum with a username that the same as the domain. Anyway, even if they are running the lottery on a website then I still sure that they will not get enough players as lottery game is a game with so low interest in this crypto gambling industry. I think this can be the reason why they choose telegram to run the lottery because it is cheaper (maybe even no costs at all) so they wont need to spend some expenses like what they need to pay if they run it on a website.