Complaints for geting defected mobile to me.

I’m buy a Nokia Lumia 730 on the date of 14-02-15. From Jayesh Mobile Nx, S 9, Jgannath Commerce Plaza, Manpada Rd Dombivali east his contect no: 9987689803 . Im declaire next day to retailer for that device is having more problems just like to mobile hang, device is not receive any file from other device and the camara of this device i capture a pic and device develop 2 extra another file but it is not supported to device.
Muze roz-roz daudaya jata hai or koi response nahi diya jata hai. Mai apna kam chhod kr inke aaj-kal me laga hu.
aap bataiye me kya karu, kaha jau, meri kon sunega.
Im waiting for your reply. My contect no : 8879848672 / 8286884541.
Plz give me respons and thanks.