Apple India — iphone 5s bad service from the service centre & cheating

Address: 560043

Website: Apple india

Hi,

My iphone 5s started to switch all of a sudden and it was not turning on.
After several tries it used to switch on.
I visited apple care service in indiranagar. When they checked they said phone went to a frozen/deep sleep state.
I requested them to check & investigate the issue and replace the phone as it was under warranty.
I submitted the phone on august 24th. Warranty was till august 29th.
Even after several request to replace the phone they said it is normal software issue and can't be replaced.
I received the after a week. It was fine when i received the phone and worked fine for a week.
After again same issue with phone. Now i think they purposefully did not even investigate as the warranty was about to expire. And did not give option to replacement.
I have all the documents of visit. Kindly file complaint against the service centre and i take some action.