Bad attitude and no response

Good day,i received my upgraded phone from mtn on a Tuesday night minutes past 7, i experienced some faults with the phone for eg the camera said (camera failed)when taking a picture. I asked the guy who delivered the phone where i can take it to to get it fixed and he told me to any mtn store, which i did in paarl and they sent me to the one in cape gate mall, called the call centre while in the mtn store and sphe spoke to one of the consultants where he told the consultant that he \Sphe"will call me for a collection date and place which never happened until today after many calls from me using my airtime which is finished now and again he told me hel call me back which he also didnt do which means its probably the 10th time im calling them just to help me i asked to speak to a manager and sphe told me shes on lunch and me that shes on lunch and even if she was here she wouldnt speak to me because shes got other priorities to attend to and i asked him am i not a priority?and he just said hel call me back.seeing that it is an out of box failure i wouldve loved to recieve a new working phone which i am paying for. I felt like crying.l"""