Vizio E80-E3 4K UHD HDR Display - 80"

I had purchased a TV from this vendor and upon arrival, everything seemed perfect, and the tv was installed and functional for 3.5 months, unfortunately just over the 90-day warranty policy on which a 80" flat screen TV of this price shouldn't be defective.... My screen has shown broken LED pixels creating red bars down the center of the screen. VIPOUTLET has refused to accept that this TV is non-refundable. And I hope I can work this out as a trusted buyer.... this defect shouldn't happen. no fault or foul was implemented in the internal defect of this machine. Now it seems I could be stuck with a $2,300 paper weight..... Please assist if possible in this situation. I am a trusted A/V engineer and this is absurd.