it's apparent since the first days that it was a such Ponzi website and it wasn't Logic , so next time if you wan't to invest you bitcoin try to do so researching about the website and don't risk with big amount
and as they told you , Ponzi is really old story even newbies can't be hunted
(time to scam= hack ) this is the equation

thank you for all posts about bitminer, [hopefully I did not fall in it] I joined the site a few days ago
https://bitminer.io/ and after a few days I get in account is worth 0.03 BTC and when in my windraw have to issue 0.01 BTC to upgrade BitMiner to premium for windraw but i do not do it as it is still looking for information about bitmimner that explain about this .. maybe there are members who can explain ....