Xiaomi India — redmi note 5 pro bend issue

Address:

Bangalore, Karnataka

First my redmi note 5 pro got bend in just 3 months and denied warranty then got warranty for only screen replacement but not the battery cover, then service center denied to give my friend the handset demanding original job sheet but i never got the original job sheet only had the old job sheet which is i am unable to give to my friend as i live 100 km away from the service center. I wanted to escalate this issue to your appellate or higher authority. The no.1 mobile company of india providing the no. 1 worst after sales service in the world.