Cape Gate Makro unhelpful with faulty TV

I bought a Hisense 65u7a TV from Makro Cape Gate on 2019-07-27.

The TV has a fault with the screen only showing white when switched on first time in the morning. I spoke to Hisense complaining about this and they sent out their technician to come have a look at the TV. They quickly identified the problem as an unrepaireable fault and advised me to contact Makro for a full refund / exchange.

I have since 2019-08-07 been struggling to get Makro to replace the TV. I phoned Janice at Cape Gate, who promised numerous times to get the responsible person to come back to me and she herself promised to follow up and phone me back. I chased her at at least 2 occasions afterwards when she didn't phone as promised and eventually went to Makro on 2019-08-09. Janice was not in on the day and Lisbe (the floor manager) promised that the sales person (Cornelius Brown who was also on holiday that day) who originally sold the TV will call me back the next few days to arrange a replacement TV.

This is now more than a week later and I still have not heard from anyone at Cape Gate Makro.

So far I have not had one response and not a single promise from Cape Gate Makro has been kept. I live in Herm**** and every time I have to go there it is a lot of time and money which would not be necessary at all if the staff at Cape Gate actually kept their promises. I want someone to sort out this replacement TV without delay, please!