Pathetic Service

We purchased a Smart Samsung 2020 TV last year and we have very happy with our purchase up until last week Saturday 21/11/2021. We were watching TV and all of sudden it just switched off, we kept hearing the TV going on and off but there was no picture. I contacted Samsung they confirmed that the TV was still under warranty and appointed a technician once they were happy with all the relevant information. I was told by the consultant that a technician would contact me within 48 hours to arrange an assessment. On the 23/11/2021 we called in again to follow-up on the technicians call and we were told that based on our telephonic report the technician established what's wrong with the TV ordered the parts and will repair the TV by latest 25/11/2021, as he already scheduled the repair. We received a message confirming the scheduled appointment and my partner took the day off on the 25/11/2021 to accomdate the technician but he never pitched. We called in and were told that the message was automated and the technician is running behind scheduled but will call us first thing on 26/11/2021. We waited the entire day hoping the technician would repair the TV today or at least call but we didn't even get a courtesy call once again. We even sent the contact centre agent agent email but didn't receive a response once he got our reference number. This is honestly pathetic, for a reputable company like Samsung to provide people with such ********** service! We've always thought Samsung was the market leaders but received better service from other brands. Honestly this experience has left a bitter taste to say the least.