Shocking upgrade experience, stay away

I app**** for an upgrade for a smartphone/watch deal through MTN Business on 20 November, day 1 of MTN's Black Friday deals. I dealt with Langa Sibanda. I am an employee of a corporate and am therefore eligible for business deals. My application was captured and then I heard nothing, had to follow up with the consultant daily. I was told there was a stock issue and therefore waited. Then on Monday, 7 December, I am told that the watch has been discontinued and my deal is therefore off. I ask them to investigate this and am then told on Tuesday morning by Langa that, after consultation with her manager, it was a mistake, the watch is in fact available and my devices will be delivered on Wednesday. I am then called on Tuesday evening again by Langa this time advising that the watch is no longer available and I have to choose something else. I then randomly call the contact centre to find out if this is true and am told that the watch has been discontinued but they had stock yesterday which was distributed to Clients. I fail to understand how I have been on the waiting list for 2 weeks but was not eligible to receive the watch. This has been a horrific Client experience from the time I submitted my application, the fact that I have to constantly follow up and I am given mixed messages throughout the application. I have been an MTN Client for over 10 years, surely loyalty means 0 to the company.