Nokia India — lumia 720 dead.

Address:

New Delhi, Delhi

sir, i had bought nokia lumia720 around a year ago and since then i had problem in my phone. i had visited nokia care-4-5 times and i am not satisfied by their services. now my phone is almost dead. the touch buttons are not working, volume buttons too are not working .the phone has no physical damage and i don't understand why all this happened. plz help otherwise i have to take a strict action against you.