Bad customer service

After a phone call from a MTN agent I agree to do a upgrade on my contract as well as my son's one ( ********** 983). It was finalized on 08/10/2018. After almost 3 weeks and still not receiving the phones, I call the customer care line " to find out what the due date for delivery will be. They informed me that it was delivered on 11/10/2018 but at the wrong address. They requested that I must email my ID to the CCI email address which I did on 25/10/2018. I received a phone call on 26/10/2018 to informed me that they are busy to investigate the issue but in the mean time they can't send me 2 other phones, and that is not acceptable to me. It's not my fault/problem if the 2 upgrade phones was delivered at the wrong address.

On 05/11/2018 I send another email to ********** without any response/feedback. On 08/11/2018 I send a email to ********** and still waiting for a reply and/or feedback.

I can not understand why it's not possible to send me 2 other phones! Why must I wait till the investigation is finalised? It is not my fault that MTN and the courier company failed in this regard!!!