I have visited it but I can't find their telegram group bounty because everyone seems to be released in the group.
That telegram group is not for bounty, it's just to see the updates and the team news. It is only informative.
I also know about the link you gave, but I only asked about the bounty group that happened to this project. Everyone was excluded from the bounty group.
This is false. There has never been any Jinbi Telegram bounty group.