Bad Bad Worst service

My name is Lucky Thabethe the Director of Tapis Construstion CC, I have been with MTN for the past 10 years, but lately I have been receiving terrible services from MTN in Rivonia and MTN in Melrose Arch. my contract was due in December and I went to MTN Rivonia to do an upgrade, i needed a XSMAX i phone and a Mac book laptop 13 inch and I was told that they don't have stock they will order and call me once received and that never happened, Reggie never called until today, we than went to Melrose Arch where we were helped by Manqoba and it took him 1 week to get stock and when we go there to sign and collect, we realized that they gave us wrong stock than what we app**** for, they gave us Mac book 11 inch which was pre-owned, it required a password to open and it was old. We took it back on Sunday 20th and I was advised that I will get the correct staff on Tuesday, told by the manager, until today no Mac book and no phone call, from either the manager or Manqoba, but I have received a message from MTN billing me for the staff. I told them that I need the laptop because I am leaving on Saturday 26th January going to Durban, now I was told that there is no Laptop they don't know what to do the branch that they work with is Bedford and they don't have it either, now I don't know what to do but I need answers and I also need a laptop, I specifically told them that I need this and they promised to give it to me on Tuesday, no one is calling, they don't care, I have wasted my minutes calling them. not to mention the petrol I have wasted. and I was told to cancel the approval and the ware don't have Mac books anymore told by Manqoba.

I need to know where to go from here, I need a laptop and I am leaving tomorrow somebody need to call me and tell me something ********** 513 or ********** 312.