[Resolved]  Snapdeal.com — scamming people by calling for assured gifts

I had recently got an call from snapdeal sales and promotions [protected], asking me details about me and then congratulating me for winning, as my number has been shortlisted by your giveaway offer, they told me that i have an assured gift, if i make a purchase of 4000rs and above from your website then ill get an iphone 7 plus, they even asked me to pay it through paytm [protected] and then now they are telling me that i have to pay the gst tax of 8899rs then ill recieve the phone with the purchased products of 4000rs.

I wanted to know whether is such offer available, any kind of giveaways or is this spam group who is going around frauding and luring everyone's money, by using snapdeal as a source, this seriously spoils the image of your company