14 days and counting

I app**** for an upgrade for my contract on 29 October and I was delighted when the phone was delivered 3 business days later. Unfortunately that didn't last long as MTN supply the wrong sim for the phone. When I got home I used the sim in our LTE (which is the right size) only to find that the phone doesn't even read the sim. I reported it the next morning but was told that I have to go to a MTN store to have them verify that the phone is not working. Two hours in line at Greenstone MTN only to be greeted by an extremely unhelpful man who eventually tested it and confirmed that it doesn't work. I informed MTN direct immediately. I was promised that someone would collect the phone promptly to be replaced. This only happened on 9 November despite me calling daily to find out why the phone hasn't been collected. It is now three days after the collection and I still don't have the new phone and I will be paying of course for a full month's contract subscription despite the fact that I haven't had the phone for half the month. All I hear is one excuse after the other and its always someone else's fault or problem. Any time this year MTN?