I prefer not to use Telegram bot based gambling due to the risk it poses. I prefer using a self-hosted casino platform and would recommend the same thing to you, OP. Gamblers do not prefer playing on telegram and most of them would not even dare to click on the telegram link as your account is brand new. If you want others to take your gambling bot seriously, then buy the Copper Membership. It will help you add images to your post so that users here can see the telegram bot without clicking on the link and then take a decision.
I do believe not many gamblers like to gambling with telegram, at least I do not see any succesful telegram gambling bot till now.
Telegram bot can be a good additional feature for online casino but using it as the main place to gamble is not good.
Maybe because fairdicebot has not much money to create a great website, that's why they choose telegram for their gambling project.
Sorry to say but I dont think it will survive in the gambling industry that has so tough competition among casinos from time to time.