Upgrade mess

I did an upgrade on my contract because it was due for an upgrade the process was started on the 14th of May I had to call and follow up on the 25th of May because the was no communication and only fhan did the consultant that helped me get the process finalized as she said she had sent it to another department to check. I have been waiting for delivery of my parcel from Courierit since the 27th I called MTN twice now to get assistance nothing has been done. The last call was 2 days ago I was told it was being escalated to the consultant that helped me with my upgrade and they would follow up and get back to me and she has not called me. I have checked with the courier company numerous times and the sqy they are escalating to the Durban branch because the driver keeps saying they were late for deliveries because I get notifications that they will deliver but they never do. At this point I need the contract canceled because clearly both providers do not care.