Amazon India — order a genuine product but delivered a wrong product

Address:	Gautam Buddh Nagar, Uttar Pradesh, 201305
Website:	www.amazon.in/gp/your-account/order-history/ref=oh_aui_menu_cancelled?ie=UTF8&orderFilter=cancel

I have ordered a sandisk ultra dual 64gb usb 3.0 otg pen drive with order #[protected] on 22nd mar 2018 sold by: sharma sales agency.

Order has been cancelled without any intimation by sms or email. But seller sent his courier person name. Manoj with mob : [protected] without the card machine and deliver me a packet and took rs 900 cash. When i unpack the packet it contains a card reader. I want my refund please do the needfull unless i will take legal action toward the seller and amazon who give support to such a crook sellers. I have packet as well as with me and the delivery person leave with the cash and told me to talk with the amazon.