Philips TV with Color Inconsistency, Brand Is Acting Ignorant

The Philips 65oled807 TV that I purchased cost me 50,000 TL, however there is a noticeable yellowing on the left side of the screen. I don't know what it is, but it looks like a burn or a bruise! Since the day I bought it, I've given them multiple calls, but the brand continues to say that it's perfectly normal despite my inquiries, I know what's not normal as a TV viewer, this is not an acceptable form of conduct, and I will not tolerate it. I'll make sure the word gets out to as many people as possible, and if that doesn't work, I might just have to go to the shop and tell those guys what's on my mind, if you get what I'm saying.