if there is no news of the funds we invest, and there is no contact number that can be contacted, as well as his website there is always maintenance, then these are the traits that the website is a scam, I have experienced the same thing, so I dare say so, maybe you've heard http://golden-cows.com/, I've invested a lot of bitcoin there, turns out not successful payment to my wallet, my advice be careful of certain websites, hopefully you can finding the right place to mine and there is no element of scam ...