I'd like to second having Bitmine.ch added to the scam list.

I placed my order in November 2013 for February delivery.

I cancelled the order in April 2014 and requested a refund due to non-delivery.

I was told in June that due to the large number of refunds requested, they could not make them all in a timely fashion as their bank only allowed a certain number of transactions per month (a likely story... not).

I am still waiting for a refund which I doubt I shall see without legal action.