No Compasion and after sales service

My Hisense 49' UHD TV had turned half of the screen blue, which I notified them via email and telephone. Worst of all, this happened only 13days after the 3year warranty. Hisense is adamant that there will be a cost to the repair and because out of warranty I have to pay for this - I reported this on the 09.12.19. From day 1 the tv was mounted to the wall and was never been abused, my point in this is, yes, I am at fault for not registering the tv for the additional year but for after sales service and compassion....Hisense has nothing. I have about four Hisense products in my house and a made a promise I will not ever support this product ever again and everyone I know I will tell them what I have witnessed with this brand....thank you for your support and service Hisense. Oh, by the way, toady a month later I'm still waiting for some one to contact me with the repair cost.....