Consumer Redressal

I had purchased iphone 5c white 8GB, from amazon india online on 08/12/2014 for 25000 Rs. My order number was 402-4621785-1145926. Since very first day, the iphone had issues and most of the times it was showing unavailable. I personally visited apple service center in city center, salt Lake, Kolkata. I was asked that if you use nano sim, instead of micro, will fix the issue. I tried it but it did not work. I still choose to continue with it as after restarting the device, it was working. Now suddenly it started giving charging issue. I spoke to Amazon help desk and explained the issue but I was told that amazon isnot liable for any product defect and rather contact Apple. I visited Apple service center to get it repaired as it is inside warranty period. They said that some liquid get inside and they can not help me. I need to pay 21,000 Rs to get new one. I am really disappointed as within few months , I am asked pay same amount. Please log my grievance and help me