Worst Service - TU7000

I bought a TV Unit in November 2020 the 70TU7000. Since the beginning of this year we started noticing that the TV switches off on its own then you need to switch it on again, the unit will work well for a while and then this starts again. Then the unit stop entirely to work. Then I logged a call for the unit so that it can be attended to. (End Feb 2022) The first logged call I was told the unit will be replaced and not fixed. Few day later the call was canceled. I did not get a call or anything in between to tell me exactly the reason why. I started again the whole process and then finally it was logged again. I was told that a technician will come out and inspect the unit, when he came I was told there where no parts available and the paper work will be filled in as the unit should be replaced. A few days later I was called again that they got parts in again, at this stage I am past the unit being fixed and want my cash back. You cannot say one thing and do something else a few days later. I called the call center and explained the issue, I was told that I can refuse and they must replace the unit. A lot of back and forth on this. I was just called this morning to be told that it is past 1 year and they need to fix the unit, I told her straight I have no longer interest in Samsung TV units and want my cash back so that I can go to another company who gives better after sales service. This is not my first encounter with Samsung on bad service. The first one was with a home theater system where some of the sales reps told us that the units are made to last just past two years and you need to fix it at your own cost and the price they charge for repair was almost the same as a new unit. Most of the time I need to phone or make use of the live chat to get feedback. I rarely get an email or phone call.