EXTREMELY DISAPPOINTED!!!!!

I have ordered an upgrade on the 19th of August and I was informed by MTN that I would have received my order 3 days later which was the 23th of August then when I called MNT to find out about my order because I have not received it they informed me that it was out of there hands and that the courier company would have contacted me regarding the order but never received a email /SMS /Phone call. Since then I have been trying to contact MNT 3 to 4 times a day in which no one can help me but when I do get through to someone from MNT they tell me that they can't help me because the courier company has the phones. Keep in mind I have to go to the MNT branch near me to find out what is happing regarding the order and they informed me that they gave my old number which has not been working for 2 years keep in mind to the courier company that also explains why the courier couldn't get a hold of me because MTN didn't not ask for the right information for the contact details. They ask me to visit there main branch but I am not able to go that far as I need to go to work. MTN customer services will be the reason they lose a very loyal customer due to their incompetence. I am extremely disappointed in the service of MTN!!!!!! The courier company that MTN uses is DSV.