MTN PATHETIC!!

I did an upgrade 3 weeks ago, i was told in store that the phone was not there but they would order it and i could collect it the next week. On the Monday of the next week the consultant called me to confirm that the phone was not available and they would need to deliver it from a warehouse. She told me this would take 3 days. On the Thursday i called the store again to confirm i had not received the phone, and they then told me that NOBODY had the phone, they would have to see when they get it - they cant even find out when - and then i can collect it in the store. I then told them to cancel the upgrade as i would rather cancel the contract if this is how pathetic the service is. That afternoon the store manager called me to me the warehouse, now by some miracle had the phone and would send it out by Monday! DSG Mounties or something like that, called me the Friday to book delivery for the next Wednesday (another broken promise) between 12:00 and 14:00. That was yesterday.... after at least 60 min on the phone between MTN and the courier company, they cannot help me, my ID isnt connected to a delivery at all and nobody knows what im talking about.