Highly dissatisfied customer

On the 3rd of August I had received a call from CCI S.A. with regards to my upcoming MTN upgrade. I was informed that my device would be delivered within 14 days of upgrade date. Up to date I haven't received any device and I've been billed for it for the months. I call CCI each week for an update or status of my device delivery and the response is that the details have been sent to MTN and are awaiting feedback. At the end of the second month I grew tired and requested that my delivery should be canceled by CCI S.A. so that I can go to a MTN store to upgrade. CCI S.A. agent responded by saying it takes 5 days to process and it's been three weeks with no communication from CCI or MTN in that regard. Upon canceling the telephonic upgrade I immediately called MTN call centre for assistance and the agent responded by saying they have escalated the matter with CCI S.A. and are awaiting feedback also. Sadly lately when I call MTN for assistance, the response is unfortunate due to CCI S.A. not assisting. I am highly frustrated with the customer service from both CCI S.A. and MTN.