Apparent out of Stock Nokia 535

I would like to upgrade to an Nokia 535 deal at MTN. I have been at the main MTN branch twice. Ianda helped me the first time. Promised she would call if the phone was \in stock"";went to ask that same day. This was in April 2015. I am still waiting for the call. <br> I went a second time to the same branch. Only to be told AGAIN that there is no stock!!! I then asked for the manager which surprise surprise was not there. Sure. So how many complaints and people do I have to speak to to get the deal I WANT AND THE PHONE I WANT? Or should I consider another service provider??? This is the SECOND TIME I HAVE TO COMPLAIN ON HELLO PETER ABOUT YOUR SERVICE TO SORT OUT A SIMPLE MATTER! I GET THE IDEA THTA YOU EITHER WANT ME TO UPGRADE TO A PHONE OF YOUR CHOOSING OR DO NOT CARE FOR MY BUSINESS. AND IN ANYCASE I AM SURE THE CONSUMER ACT PROVIDES FOR THE FACT THAT I CAN CHOOSE WHAT PHONE AT WHAT PRICE I CAN UPGRADE TO."""