UPGRADE DONE BUT NO FEEDBACK OR DELIVERY

I called MTN direct on the 11th of October to upgrade my contract, I spoke to Nombuso Mchunu. After emailing her the relevant documentation , I received an sms to say the upgrade was successful. I also received the new bundle , thereafter I received no sms, phone call or any form of communication to let me know when the handset would be delivered. On the 15th of October I took it upon myself to follow up, I phoned in and the sales consultant said I should phone the logistics company which I did only to find out that nothing has been scheduled for delivery. Thereafter I spoke to 2 sales consultants that wasted my time , the one gentlemen said he would phone me back yesterday but no such thing happened. This morning I then phoned again to speak to a supervisor, apparently he was busy on a line. I waited for a while then the lady tried to assist me and follow up but some how they cut the call. nobody has had the decency to just phone me back and let me know what's happening. I should have received the handset yesterday already.