Worst Upgrade Experience EVER, I still don't have my phone!

I am due for an upgrade, 2 months ago I requested an update from MTN through their WhatsApp line. I was assisted by a lady called Charmaine. She created multiple orders in my account, which I asked her about and was told she's just login in into the system. The upgrade was never done and I never got any feedback from this girl. I called again and another consultant told me no updated was done. Which I proceeded to ask if they could process the upgrade, again no success. Last Friday I call the call center again to complete my upgrade, the sales guy tells me there are multiple orders opened on my account, which he can't delete only customercare can do it. He puts the phone down on me and that's the end of our conversation. I calla gain on Monday, this time I contact customer center, I am told they don't cancel orders only upgrade does that. I call upgrade and speak another consultant, who proceeds to say they don't do it, customercare does it, which she makes me hold the line and puts me through to customer care, who proceeds to say they don't do it and puts the line down on me. I am actually very frustrated by the service I ahve received from MTN. As a loyal customer I'm disappointed by the lack of service received.