It clearly shows that they just wanted to scam you as they think that you dont have any proof of investments. I think you should PM the DT members and communicate with them about this situation and take help from them. They will red tag them, so that you will get the result soon.
The account link which you gave has just been created the account and did not posted anything through it. So i think the project developer just created the account to show that they wanted to promote their project but never responded. So i think this project is more over like scam.