Poor Customer Service

I logged a complaint with Vodacom on 28 December 2016 regarding poor network coverage. About 4 months later I received a call stating that their radio planner are trying to get hold of me by I am not responding. Upon asking which mobile number they are using Vodacom realized they are using an incorrect number. I was assured that I would receive a call in order for the problem to be resolved. It is 17 January 2018 and I am STILL waiting. The network coverage in my area is shocking. I need to do a lot of work from home and keep losing connectivity. I logged a call again this morning and was told I must wait 72 hours for SOMEONE to call me. This is unacceptable. I cannot believe that Vodacom expects their customers to accept such shocking treatment. The don't miss a beat when taking my debit order every month. WHAT AM I PAYING FOR! South Africa has the second highest data costs in the world but we cannot even use this very expensive data when we buy it. Absolutely shocking! Vodacom will lose a longstanding customer (since 2003) as they don't seem to care.