Consumer Redressal

I am Harshal, I want to lodge my complaint against Nokia Service and Product I own Nokia Lumia 1320 worth Rs.20,000/- I bought it on 19th june 2014...... In just 7-8 months ,literally I visited service center 13 times................ I've complained against this in Nokia support website on 24th november....... after lodging complaint,one person from Nokia called me n said that our complaint will be passed to higher authority and they will call and they told me to deposit my mobile to service center..... I've deposited my mobile in service center on 25th november to nokia service center , Vashi....... and they sent my mobile to Nokia Service headquarters,Chennai.This is the second time of sending my phone to Chennai.......... Even after 20 days of lodging complaint on nokia website...........they are not giving me any type of response...... and even after visiting service center 13 times, they are not agreeing that device was faulty and they are giving Replacement please help