Dealzkart — i want to return order and give my money back because company sent me duplicate products

Address:	135133
Website:	Dealzkart

I want to return order reference no. [protected] of combo pack of non brand power bank 25000 mah, and headphone. Because the dealzkart sent me duplicate products and also power bank not working properly. They was not actual product that show in images.. The charger sent me non brand but in images show the sony headphone, samsang power bank and data cable of power bank not working.. So i want to return this products and give my money back...