Broken and no guarantee

The equipment is good and works but not for long. I have it ordered in February 2014 and have used it to early June 2014 when it was broken.
The worst, however, is how the company treats its customers! I wanted to take warranty service and that is why some emails I sent to service centers. At first she did not answer and then check offered by technicians, because I have probably "the instrument used against the instructions."
After I asked where I need to return the unit and how do I get a return label is already nothing to hear from the company for more than a week.
One probably, that was a surprise to you that someone wants to get his money! Too bad.