Stalling off $66000 withdrawal! It might be a scam!

I registered on this platform after being introduced by a friend. A couple of my friends are investing in this platform, so I deposited a large amount after I registered. Now they’ve been stalling off my withdrawal request. It never happens to my friends. I think there might be something wrong with this platform. I’ve collected a bunch of evidence such as screenshots. Does it work it if I complain to the regulatory authority? If I still can’t withdraw my money, I will hire a lawyer and sue them.