Well nothing much really, but at this point i have nothing to lose. Returned them 2 units, 2 units came back. Both died within few hours. Again sent them 1 of them, i decided to keep one that works somehow with 2 boards, and the last one came in also malfunctioning ( works with 1 board ). I still can send it back for repair once again but whats the point? They will always send scrap back and that is obvious. I can also include some international authorities, i mean they can't just get away with this that easily by producing and selling scrap. 

I just need some agencies, local or international. But the thing is i know that they can always say that they sent out a working replacement and that it died during transport and we can't do anything about it. If they wanted to find a solution they would, but they don't want. Its much cheaper for them to pretend that they are fixing units until the end of the warranty period.