Here's a dodgy update for you guys.  
  
As far as I can tell (and the devs have now blocked me from their twitter feed)...

I mined 340,000 Qiwicoins, then waited for the exchange - they ended up making their own exchange (which I guess is ok) and I deposited a bunch of my coins into there - sold 1.24 btc worth and withdraw it.

Took 4 days, then the order was reset - rinse and repeat 3 times.

Then I log in and to withdraw ANY coins of ANY type - I have to give my Drivers Licence, Social Security number and Passport info to withdraw.

I believe this coin and exchange is a Russian scam, keep clear. They are trying to "mine" personal details from people.  

If the devs want to dispute this, let them... So far they have ignored all users who have had any issues with things.

as a side note, I have never recieved any answers from the admins of Qiwicoin or 7-50.com as to why I cannot withdraw the coins I deposited... and further to this, I've somehow lost around 100,000 coins (probably more) randomly during the trading process.