rude service from preciuos

Hi please assist with the following, I took my phone to Mtn , my phone did have two small dents on the corner s and it came back worse <br> So I explained to the consultant called precious that I will not take my phone in that state , well she started talking in her Tsonga language saying so what must she do if it came back in that way, I explained to her that I do under stand its not French or rocket science , so she must stop , left and came back for the second time is a.I went to Mtn in centurion got assisted by precious who came to me hoping to beat me up while I was taking a picture of her ,not knowing that is not allowed , she started swearing at me as I kept asking why is she swearing wanted to know what I am going to do. Firstly I find the service very poor ,for the fact that I and not receiving service now swear words just because Mtn has no cameras I have every thing on recordings, I am even willing to go public as I feel violated by a consultant,I would like to have my phone that I am paying for .I get worst service , I mean I have been with Mtn upgraded more than 2:times where I could be with other networks, but I choose Mtn,now I have to deal with unprofessional ,