worst service in 14 years

I've been an Mtn customer for about 14 yeare. 17 March I inquire in store about contract upgrade. Bulelani extremely exhaustedly explains a few things. He shows me 2 demo S6 and S6 edge. He says he must order the colour I want etc. Next day I receive a sms 2 say my contract was upgrade and to a package I specifically told him I didn't want. I called him, he says er er it was my mistake. I called him every day 2 ask when he will fix his mistake. He kept saying that he will call me back. 2week's later I had 2 demand his supervisors number. He then tells me my S7 phone is in store,which I didnt order. He said he wrote it down as an S7. I asked him why the contact wasn't reversed, he tells me that I am going to up grade anyway so I can just leave it, again on a package that I told him I did not want. I eventually go 2 the store because he says my phone is there. He sees me and conveniently he takes his lunch break and disappears. A different consultant then completed my upgrade. This is truly the worse service I received from Mtn.