Bad reception and customer service non existent

I have been trying for months now to get through to the call centre to voice my complaint but it is non existent. I have even been on a call for 1 hour and 20 minutes before hanging up. All I want is to talk to somebody but that can't happen. With my last issue of incorrect billing I went to Vaal Mall Mtn and basically told it is privately owned and they can't do anything and they also can't get through to customer care. I have a huge problem with reception. In Mossel Bay last month I could barely hold a call. It was terrible. I had my phone checked only to be told it is Mtn. Last few months in Vaalpark have gotten worse. I now have no signal at home and when I do drive around I can tell exactly depending where I drive that I am going to lose signal. I work from my phone and been a loyal customer for 17 years and this is the service I get. I have also been to Vaal Mall again and just get told it is a privately owned store. So who am I supposed to speak to to sort this out. Most people I have spoken to are also complaining about losing signal. My question is where is your customer service as there is none at the moment and when will the signal be sorted out in our area as it was fin