been battling to upgrade for over two years!!!

This is not my first complaint- in fact there's been many, some expired because of the time that has gone by. I have been trying to upgrade my contract since the Samsung S4 came out- yes we are now on the 6 already! The lad I was dealing with is useless and he eventually got promoted (lol) to another department. He would then pass my details on to whoever but still no response. I do a follow-up every 6 months to a year and go through the same old same old. MTN has been happily deducting for my monthly usage and I am now due for my \NEXT"upgrade- missing out on the previous 2 year term. In fact I believe that they should compensate for that time and give me a new phone for current period as well. Their responses are generic and albeit they try to create the impression that they resolve issues- they don't. Of all the networks I think MTN is the worst when it comes to service."""