Apple India — Iphone 5s - software failure, Apple asking to pay 9k above market price for replacement

Address: 600088

We bought an Apple iPhone 5s 8 months ago. 5 months after purchase it started giving software issues and we endured sleepless nights. We visited iCare multiple no of times. Finally now my phone is RIP. Apple is asking us to pay 24k to replace the phone while i had bought the phone for 21k 8 months back. Current market rate of the phone is ~15k. iCare was unable to repair the phone - they are pointing to a small dent on the top of the phone and saying they cannot do anything about the phone. The phone is dead now