try emailing them again and you might get surprised at how much further they are willing to bend over their pathetic ass this time.. i recently bought 300gh more from bitmain and will buy even more to bury their greedy ass. i was one of the first generation ibelink owners and they screwed up entire ecosystem leaving us with no chance to roi so this time it's payback time. also people have short term memories baikal fucked every one of their buyer over by competing against them with their own farms.