Campaign manager

I called in twice to MTN this morning as my phone doesnt charge and is under warranty, The first agent took all my info, asked me what the query was and then put me on hold, she returned a minute later to ask me again what my query was, when i told her i am not repeating myself she hung up, i called again and spoke to another agent who refused to take my details before i told her what the query was, eventually i gave her the details and asked for a manager, she then told me all manager are not available, i asked for the campaign manager and was then put on hold, minutes later she cut the call, i have asked for a campaign manager at the durban branch 4 weeks ago and this person is still calling me, why do you employ people of such calibre and lack of duty? is this customer service? taking our money is always on time yet assisting us is always an issue, i am going to post this on facebook as well as make a banner and hang it outside on the road for everyone to see!!!!!