I have written 3 times to the CS representative. The first time, I was ignored completely. The second time, I was told the warranty is not valid for me and I would have to pay for the repairs. My last message I communicated my disappointment. I also sent a short video and a photo of a polar plot. I was very professional every time. We'll see if they respond at all. He was pretty dismissive, so I don't expect a response.