Hisense TV horrible experience just 2 months old TV

I bought a brand new 85" LED TV from OK furniture South gate and now the TV is turning it self on and off which is apparently a Hisense thing online and i have reported the issue and i am being told the technician will take 4 to 5 working days to come and have a look at the item whereas this TV is not more than 2 months old, i regret moving from Samsung their products have treated me amazingly over the years and when i just thought let me give the hisense brand a chance this is what happens and from what have noticed they make excuses to fix their issues with someone saying they refused for not having the original box which is laughable....... Never again i will wait for them to come fix this mess of theirs or give me a new TV or my money back and i will never again buy their nonsense brand as this on and off TV issue is known everywhere and its not a new thing its been happening since 2020 and this is a 2025 model of a TV with the same issue even now..... shameful i am hoping they sort this mess out as soon as possible.