Sony India — Television/ Malfunctioning TV Sold and Bad customer Response

Purchased Television W830-32 INCH HD Ready LED Smart Android TV-KD 32W830 from Vijay Sales, Little world mall, Kharghar, Navi Mumbai on 17.03.2022. Got it installed on 21.03.2022. On 24.03.2022, started observing flickering line on TV Screen. Raised complained on 27.03.2022- ID no. 69499963. From then till now just following up from customer care without any success. Additionally, screen starting to show parrot green illuminated lines along the edges occasionally. Connectivity issues with WiFi also developed. Sony team did managed to send one technician also. But he seemed very clueless after observing the issues. He did take photographs and videos of problems observed and promised to show it to their management persons. But after that they all became unreachable. No one responding now.
First they sold a corrupt, malfunctioning television in first place, then they avoid and do not address the issues raised. Enough time passed now. Kindly do the desirable solution: either replace the Television or refund the amount. Please do not DUPE anyone.