Take your money, but dont deliver. Useless support

I purchased a Nokia Lumia through the MTN online store on the 19th of October, I realized that the online tracking doesn't work, so tried to contact their offices to find out expected delivery date. This has been far more complex than one would expect as initially they could not find my order, then queried if it was paid (although I have the online receipt number) All the online support team can tell you is that they have \escalated the order"No one calls or mails back to give you an update. Finally yesterday I had to insist on speaking to the supervisor they keep mentioning"