Xiaomi India — Unavailability of phone batteries

Address:

New Delhi, Delhi

Its a shocking thing but a company which is the fifth largest phone manufacturer in the world does not supply phone batteries to their service centers. what a shame!
My phone (mi 4i) happens to have a swollen battery. so i went to the service center in janakpuri, new delhi to get my phone's battery replaced. but as shocking as it may sound, xiaomi does not believe in stocking their service centers with spare batteries.
And due to the swelling of the battery, my phone's chassis has become twisted and now i also have a curved display for free.
I went to the service center when my phone was under warranty. but it will expire way before xiaomi decides to send batteries to their service centers.
Thanks xiaomi, you lost a customer and other potential customers too because i won't recommend your products and services to anyone.
Ps. the staff at the service center had some behavior issues while addressing to my grievances.