Sony India — faulty tv

I recently purchased a sony bravia kdl-43w800d from amazon india on 29th sept 2017. The tv showed white patches in dark scenes for which i had to contact sony india (Metaltech. [protected]@gmail.com) and i was told to share the screenshot of dark scenes and bright scenes both. The photos clearly showed the white patches during the night scenes and dark scenes. Ever since then sony india keeps on telling me that they have written about the same to the management and waiting for an answer regarding the same. Its been over two weeks and i haven't heard anything from them ever since. I could have bought any other tcl or a vu tv and still not expect this kind of visual distortion at a much lower price and sony, the brand which keeps thumping their chest for awesome picture quality has come to an all time low to defend such issues so blatantly. Please see the pictures yourself and tell me whether any of you could have settled after paying such a huge price for the same.
Today, i was told that sony management has replied saying that this issue is normal and thats where i find it difficult to believe that a brand like sony, whom we have been looking upto since childhood can so blatantly defend a faulty screen.