MTN feedback lacks big time

I am due for an upgrade and end October I visited my local MTN store in Wellington for an upgrade to the XS 256G and I want to add the iMac 13” notebook. I was told they don’t have the Notebook and will have to order. I told the customer care lady at the shop she must hold the phone for me untill they received the notebook then I will upgrade with the addition of the Notbook. It’s now been almost a month. Every time I call, it’s the same story, they still waiting for the Notebook. All calls, messages to MTN regarding how long does delivery take on a Notebook is met by the same answer: they can’t track it as I haven’t upgrades yet. How am I to upgrade without the addition of the Notebook? I am so frustrated as I wanted this package before Xmas. Now it seems I have to look for another service provider who will actually assisy promptly. Amd this after being a client of MTN for more than 20 years.