TERRIBLE RECEPTION GERMISTON/LAMBTON

I have a contract with Vodacom now for years and still no solution. My bill with Vodacom is - R8000 per month and I also have a data contract. I live in Germiston/Lambton and don't get 3G signal and most of the time I have one bar on edge. They told me I must get an Ariel which I did on my cost (CRAZY) and cost me R7500. I have called and complaint numerous times with \we will investigate and get back to you"(VERY FUNNY). MTN"