BAD SERVICE FROM MTN

I upgraded my 17 year old daughter's IPhone contract at MTN Constantia Emporium on the 30th December 2022. I paid a sum of more than R400 as this was an early upgrade. On 1 January 2023 she noticed a red LCD light. I took it back to the MTN store at the Constantiaberg Emporium on 2 January 2023. As the phone was returned within the 7 day period we were told she would receive a new phone once they had one in stock, this was all lies and the feedback or updates I got from the store was non existent.

I finally got hold of their regional manager and she was so tardy and has been very much below par and it's ridiculous at how I have been treated. I am questioning Apples partnership with MTN as this does not reflect well. Well it's the 19th of January 2023 and we still haven't got my phone and to crown it all when I went to the MTN Constantiaberg Emporium store today it has been closed down and they didnt even have the decency to contact me.

Is this really the type of service MTN provides where I can't even get a MTN customer care champions to help me.