MTN Warranty Assessment!

Upgraded my cell phone contract with MTN - 19/08/2018. Upgraded to a Samsung Galaxy A6 - this is the phone offered to me by MTN staff - in line with my current contract! Day 10 of having the phone and my contacts could not hear me. Told by MTN Canal Walk - where I upgraded - to take the phone to the MTN outlet just outside of Canal Walk. Handed the phone in on 31/08/2108 - Warranty Assessment they call it! Two weeks after handing in my phone, I contact MTN - only to be told that they have not even looked at my phone yet. Well today Monday 24 Sept 2018, we are more that 3 weeks into me having handed in my so called "new" phone! Disgusted at the poor service by MTN. Seems like they are only interested in signing up new contracts while handing out second grade phones to clients and not giving a damn about their clients.