Disgusting network signal and service delivery

I contacted Cell C Call centre on numerous occasions, looking for answers as to why the 'leading mobile provider', Cell C, reception/ network is so poor, almost non-existent in my area, Strandfontein Mitchell's Plain. I got told that it is within their plan to improve signal in this area (many moons ago). I think this is disgusting as I am paying for a service that I cannot even make use of- I cannot say that I 'plan' to pay for my contract, I am obliged to pay for it, and I therefore think that it is within my rights as a customer to have good quality signal available. Please improve this situation, I am a disgusted, dissatisfied customer of apparently a 'leading mobile provider'.