no cell or data coverage and nobody to help

I have poor voice/data coverage since last year which I put on Hellopeter. I had a response to my compliant -the area manager was to contact me. I had NO contact but instead I have spent time at my cost going into Autopage to see what can be done. MTN are holding me to my contract, I needed to log a coverage complaint. I did this and have waited longer than the 96 hours I was told they would take to contact me. I am now told I must wait for somebody to contact me, BUT no timeline given- it could be today it could be next year? I then ask who I can escalate to and get told I must tell them who I want to speak to? I dont know who to speak to that's why I am asking how to elevate. call center chap says nope I need to tell him otherwise I must just WAIT for Thomas at his leisure and timeframe? <br> in the meantime i cannot use my cellphone at my office/home and continue to have calls cut and disrupted throughout Somerser West - my only option now is to cancel my contract - PAY for a service I cant use, and move to Vodacom who I am assured by all my business friends is better. I will also cancel all staff and family contracts and move to Vodacom after being a 20 yr customer