I did contact a lot of the members for reviews or if they had been paid and no bad reviews, everyone got paid per plan, thought surely not everyone lieing (10 people).
What you did there is akin to asking a question in a public group on how to get something done on a wallet. The first person that sends you a DM is obviously a scammer. This thing is a pattern. I've experienced it countless times. Anyone reading this post now can try that experiment. It won't take more than 5 mins before you find the scammer in your net. You wouldn't know if all those you asked are in on it with the person you invested with. It's highly possible that they were all together.
As for if it's a scam or not, you should just move on and take what happened to you as the cost for the experience you've now acquired with that incident. Life is full of lessons; some we pay heavily for while some are free gift.