Cell C Lack of Service

I have been without a cellphone signal since 1 August for no apparent reason. When I called Cell C I was told to recall the last few numbers I called and other insignificant questions. Since I use my phone to most receive calls, I possibly responded incorrectly to these arb questions. I was then told to visit a Cell C store to sort this out, I live in Grahamstown, there is no cell c store here. Fortunately I was to travel to Joburg the following week and visited the store in Mall of Africa, provided the required details and still no signal. Again I was told to provide the same arb information I had already provided at the store when I presented myself in person. I have had my cellphone number for over 20 years, all my business and personal contacts are on my phone, monies awaiting to be withdrawn and every day I am without a phone could potentially cost me business. I have never experienced such uncooperative customer service for the most basic thing a cellphone company is meant to provide.