Bad reception and no feedback

I currently live in Dalpark,Brakpan and have terrible cellular reception at my residence, I run my business from my home and my wife is also an estate agent which makes it highly difficult to conduct business and we miss a lot of calls as well as internet being extremely slow we reported this to Vodacom and they admitted that there is a signal problem in our area and said that they would come and put a booster Aerial up at our house we filled in all the documents and sent it through. They then contacted us to say that they don't have stock and that it would take 8 weeks for them to get stock. It has been over 8 weeks now and when contacting them to find out on the progress of the situation you don't get any feedback or response. For a company as big as Vodacom to actually not have stock is very poor. This is becoming a huge problem for us and we would like it to be sorted out as soon as possible can a person get service nowhere these days?