Xiaomi India — mobile replacement reg

Address:

Devraj urs layout davanagere, 577006

Dear sir,
I had purchased poco f1 on 26/12/2018 through flip kart online shopping site. I got serviced two times in warranty for yellow patches on display on june 2019 and september2019 within a span of 3 months. Why this is happening. If i got the same problem after the warranty it will cost a higher side to replace a display. And warranty will not cover the date from the replacement instead it takes from the date purchasing. Kindly replace the mobile with new one and do the needful. The mobile has no good review from anyone which i know. The serviced copy and purchased inviloice is attached for your reference