Brand new 65" UHD tv not repaired

I bought a 65" UHD tv last year during black friday, i noticed there were 2 red dots the size of a 10 cent coin each on the left top of the screen.

I logged a support call with hisense the 18 th of December, since then I have struggled to get them to come out and fetch the TV. When they eventually came fetch it for repairs after nearly 2 months, they said it would take about a week.

The next monday I receive a call saying that they want to bring back the tv, which I assumed was fixed. When they arrived, they just plugged in the tv and left without saying anything about the issue. When I tested it, the 2 red dots are still clearly visible on the screen and the job card slip said "no fault".

I am furious because the 2 dots is still very there so I don't know if those technitions are colour blind that they didn't see the issue. I have many hisense products in my house and I have supported them alot over the years but this really puts me off from buying any hisense product ever again.