Bad After Sales

I was advised that Spacetv has the best ovhd decoders and I've purchased 8 of them. All are still under a year old and all have a problem whereby after 1-10 days, they give an error saying \no channels found"and I am not able to change channels until I redo a scan or reset and reconfigure them decoder is scanning isn't working. I have raised this to Spacetv in cape town who advised that they are waiting on the supplier for feedback and they cannot further assist me until then. I am very concerned that soon the warranty will run our and I will be sitting with 7 of these troublesome decoders. It is further very frustrating to be resetting these decoders almost every week to reconfigure them so that the channels can work again. The model with the problem is DS200HD. Space is now selling a different brand."""