10years later, I'm treated like TRASH!

I upgraded last year and my package wasn't changed. I requested it to be changed as I'm currently paying for a service I am not receiving in January. To date, I am still waiting for my package to be changed!!! 4months later!!!!! Each time I call I am treated rudely by staff. Tweets etc have all failed to generate a response. One consultant put me through to his supervisor \Xolani"who said they would escalate the matter but still NOTHING. So I am paying MTN so I can receive bad service and be treated like a nuisance?? Does MTN train its staff on Customer Service?? Are they aware of their staff level of INCOMPETENCE!?"""