Apple India — Iphone 5s not working in less than 1 month

Address: Thane, Maharashtra, 400606

Website: Apple.com

[protected] case id
My iphone was 2 times given to service centre first time it was software update issue then it was good after which it again was not charging.
Again gave to service centre and after 3 days they tell that it was liquid damage and cannot br replaced.
From first day issue was with phone and most of time it was in service centre.
I have not put any water in my phone and either service centre has made my phone corrupt or it was faulty equipment given to me in sealed pack from shreeji phone viviana mall thane.
Please escalate it as i have already called apple service centre and all are saying ned to pay 22000 for replacement which is actually price of phone.also shreeje phone has told us only apple service centre can help.
Request to look into it and give me free replacement.