S N D Electronics & Developers — wrong parcel

Dear sir,
I have received a call on 4 November 2017 regarding i was the one person among 10 that i have won a mobile hand set samsung j7 prime and also free gift of rebook kit so i have ordered this product on 6 November 2017 after that i have received parcel from india post on 12 November 2017 and i have pay of Rs. 6000 to the postman it is written on the sheet that business parcel - cod
E biller id no - 8118
Courier name - bpp
Tin-[protected]
She was say her name Neha Sharma
Her contact no:- [[protected]]
When i opened the box i have found something different which i haven't ordered.
So sir i request you to please refund my money back.
My Address At. Post. Chandol District Buldana Maharashtra pin 443106
contact number [protected]