Poor Quality Product: Sunsui 65inc

We bought Sunsui TV, 65inch on the 24 July 2019; under the warranty of 2 years; 30 June 2021 the screen went blank , reported it to incredible connections welkom Goldfields Mall.... They said I must take it to TV Mecca Welkom, to diagnose the problem as the TV was still under warranty,We took the TV there on 30/06/2021 the diagnosis came as factory fault; "electronic component failure due to normal aging of electronic components", backlight control circuit

What is sad is that till today our TV is still not fixed; We are taken Pillar to post Question: Is incredible connection selling factory fault product, Can I please be requested to be refunded as I don't trust anymore No one is keeping us updated; we are being taken Pillar to post; a month later we don't have our TV Please help