Useclix.com review: Site suddenly closed 2

I am an user of useclix.com a ptc website. I have invested more than $100+ on this site. But suddenly they have closed the website. 10 days agi, I have upgraded my account to premium by paying $80 and $20 to rent referrals. Before that I have invested $10 for renting referrals and I have invested all the money I have earned from this website. Now they have closed the website without any information. Please help me in retaining my money back.