Okay, I went through all of the posts in the channel. There are only 28 people, the chat is quite new, you are not even the source of betting tips. The source won 70/84 games according to the channel. That is still a small amount of games, but there are screenshots that confirm only 5 or so. Moreover, you are asking for 100€+ from the members, and there is even no information on what these people are getting in return!  No guarantees, no messages from other people. Looks really suspicious. If you want to look legit, wait for more tips, provide some free ones, give some information about you so that people can do something if you scan them. Good luck!