I am facing green line issue on my display after the latest software update...My phone has no dents and scratches and my phone warreenty is over, please help and support to free replacement and service my issue

I got green line issue on my s21 fe exynos variant by updating the security patch on 26/04/14. The phone is out of warranty so the service center asking me around 10k to replace the screen. How do I supposed to pay for the issue that's from these kin...