Poor service delivery and disrespect by DSTV

21/06/19 DSTV Multichoice has rendered the worst service ever to my family. Its school holiday and my grandkids have paid me a visit. Since the 14 June to date my so called new DSTV explorer decoder is not working. They used lies to sell me explorer decoders, claiming that DSTV would soon be discontinuing the old type of decoders and we would all be forced to buy the new explorers. They promised to deliver with free installation. Indeed installers came through on the 13th , they disconnected all my decoder connections and connected 2 explorers. The one in my bedroom never worked. They came back the following day and still left it not working. They had promised to come back to fix the connections, they never came back. I'm now almost 2 weeks without TV in my room. I couldnt even watch the SONA, my grandkids cant watch their favourite movies. How do I pay this month's subscription? The installers wont even answer my calls on the number they called me from ***. Please help. Right now I am so frustrated I want to cancel this deal. They must just come back to reconnect my old connections.