No signal no pay

Since they have initiated these new dstv explorers. We have had issues with no signal. For the past 3 years I have had to go and exchange my new ultra explora every 3 months and with that said have to pay and installer to come and install the new sh#tty machines.of theirs..I had no signal issues when they had the very first explorers they had and since then I can't even have a week without having signal.issues. WORST Service ever. Their staff tells you to unplug the dstv plug it intomyje other outlet and reboot it, once done it "should" work, and yes it works but unplugging it and plugging it back at the first outlet then it works but everything recorded is gone.