MTN Online Upgrade headaches

Upgraded one of the numbers on my contract several weeks ago online and ordered a handset to be delivered to my work address. After several days I queried this with Mtn and was told to speak to DSV. They told me that they would only be able to make the deliver if the number that the upgrade was done on was present as they would require an OTP to confirm. I explained that the number cannot be present as it is my wife's number and she needs her phone with her. I was told to change the delivery address to my home address where my wife works from. I managed to do that but it is a week later and no one has contacted me to arrange delivery yet. Every phone call ends up being minimum 30 minutes to speak to someone only to be told that I need to speak to a different department. I have now been referred to and/transferred to DSV Mounties, DSV Centurion, MTN Customer service, MTN Direct, MTN Upgrades department and MTN Rewards but no one has been able to help. Who is there left top speak to at MTN?