Pathetic service

Worse service ever, took two new contracts for an iphone 12 pro max from MTN at Pick n Pay centre Chatsworth, the one started to heat up whilst charging, sent back to store, was booked in, came back saying the "find my iphone" was apparently turned on, but store confirmed it was off, hence fone came back to store, as per store the service was off, hence it was booked again but this time wasn't picked up due to the riots, eventually after being picked up, then the IMEI number didn't match the box, note this was supposed to be checked at the store, when I asked Siya the consultant about checking the IMEI number, he said he doesn't know how to, my question, you work at an iphone store but don't know how to check for an IMEI number, even my youngest son who is 13, knows how to do that. Anyhow the correct box was sent, and now, bear in mind, it has been over a month, back and forth, and now it has come back that it was tested and no fault found, Is this MTN way of saving money and not giving customers a replacement phone, is this the way they run their business, the contracts aren't cheap, and we expect good service, this is pathetic service and would never recommend MTN to anyone, I am appalled at the service received from them, I mean this is a brand new device, and MTN is basically telling me I am wrong in saying my device was heating up whilst charging, do they think that I wanted to sit without my new phone and still pay for it, for over a month, just to see what they do, seriously MTN, get your act together and do the right thing, replace my new device,