Disgusted with DSTV (Multichoice).

For almost 4 months I have had no service with my DSTV. I have two PVRs and pay an annual up front amount. I have called in agents to come and try fix this. Each time they come in, it works for a day or 2 and then stops working again. They both tell me this is happening frequently lately. I either get half my channels working. Or nothing but can at least access my PVR recordings. Now on my second PVR I can't even access these recordings. I have called the customer careline on multiple occasions and it is an exercise in abuse. The call center agents take me through the most mundane checks. Then they put me on hold for ages. The last interact I had, a week ago, I was put on hold for 25 minutes before I gave up and put the phone down. On Twitter I get a barrage of varied responses to try different thing. The closest i got was when someone told me to unplug everything, wait for 2 minutes and then rebstart. This worked - all channels worked. And then 5 minutes later I was back to only half the channels working. After a reboot then no channels were working. Then i tried this again today and now i just have "the Determining Footprint" message on both PVRs. It's disgraceful because I paid up front for a year and can't even cancel. I want to support local business but Netflix just works. I keep DSTV for the sport but it doesnt work so why do I need to pay? The problem is I have paid and now demand a refund. Each time I call an agent to come fix it costs me close to R1000. Its obscene that I get no support from a company I have been supporting for over ten years as a loyal subscriber. Last week when I at least still had half channels my signal strnegth was 54% and quality was 100% for Tuner1. Signal strnegth was 63% and quality was 100% for Tuner2.