Redmi — Cellphone touch improper working ji

Address:

16;5 th cross, kalaivanar nagar, kattur, Trichy 620019

Sir, I purchased a new redmi.8 sapphire Blue 4 GB/64GB mobile at Trichy Market during June 2020. My phone IMEI1: [protected], and IMEI2:[protected]. Manufacture in 6/2020 only. But from the date of purchase the touch screen act it self and send unnecessary messages to every one. Further more i am not able enjoy even youtube / facebook since the window changed itself with in a fraction of seconds and the display is running fast. My guarantee card and bill misplaced. According to your manufacture date it is covered under warranty. Hence I approached your redmi service center near Hindi shaba tennur road, they advised to change the touch screen at a cost of Rs. 2700/- My question is as per manufacture date with in 6 months whether it was covered under warranty or not. My phone No. [protected]. I am not able to scan my Q.R code to get warranty on line. Kindly help please to avoid such situation.
Thanking you