Vivo Mobile India — X60 pro plus green line issue

I have been using Vivo X60 pro plus around 1.5 year. Few days ago A green vertical line appeared on my phone's screen after updating the software. There no service centre in my city so I went 140 kilometres far away from home to Vivo service centre. I expressed my issue to them but they refused to accept that the software update issue. They said "software update has nothing to do this problem. They didn't even touched my phone and said you have to replace the display and it will cost you 12, 800 rupees. I heard a lot of Vivo user has same problem after software update. Vivo You have to fix my problem for free of cost. I want justice.