Makro, No Support, Online Purchase, Hisense 58" TV

I have bought a Hisense 58" Smart UHD TV in November and was delivered on the 2nd of December.

The TV has 3 problems from the start: (1.) TV Needs to be rebooted every time it needs to be connected to a wifi device or re-connect to a wifi device. (2.) USB 3 port "throws the usb device out" after few minutes of play. (3.) TV Freezes randomly, and does not respond to the remote and need to be rebooted

We had 4 technicians to have a look and 1 mother board replacement was done. it continues to give the same problems.

I have called in several times and was told I would get feedback and technician would come but still I sit the same problem, thelast two reference numbers, Ref No: 30583, Makro Online and Zweli Mnguni, Ref No: 35214, Makro Online (this guy refuse to provide me with contact details or speak to a senior person to escalate this matter).