Absolutely torrid service

I phone your help desk to pair a new decoder and smart card the operators don't have clue how to do this keep on telling me the serial numbers are wrong. Aftrr phoning 5 times and R120 airtime later it was paired but now my screen is black. I can see the menu and task bar but screen is completely black. Signal is on 84% and quality on 100%. Call 6 I was told to umplug and restart but all in vain. Seriously you guys have no idea what service is after charging excessive amounts one must phone and spent lots of money and not be helped. This is utterly bad. I have yo drive now tomorrow to n1 to hopefully get this sorted. You seriously need a wake up and your staff needs training on talking properly and problem solving. Shocking to say the least.