Lack of Coverage

I was enticed into a C Cell contract with an iPhone. The price was very competitive compared to the other service providers, so I went for it. Well, what a mistake that turned out to be! Like most business people, I rely on decent coverage for calls, e mail and internet for maps. When signing up, you are not told that when traveling in some areas, Vodacom provides the service but when this happens, you get no data!! So no e mail or internet!! 80% of my calls drop in the first minute so I am required to make four calls to complete a conversation. More often than not, my phone does not ring, yet I receive a missed call message. All in all I am paying for a phone and service I cant use and doesn't work. I have enquired about changing back to my previous provider, but am told I have to buy my way out of the contract! Surely, the least I could expect is to opt out if Cell C cant provide me with a decent service. Shockingly, this bad service is common knowledge amongst dealers and the public. Today NO INTERNET yet full coverage displayed on the phone. REDICULOUS!!