Snapdeal.com — fake call

Address:

Indore, Madhya Pradesh, 452009

Today i recv sms from snap deal that i won 1st prize of tata saffari car and they required my bank ac details, when i deny to give tham required info then they abusing me.
I just want to say how you give such info like order detail and contact info to such pepole.
Is snap deal is fraud site who share customer details. Call recv from [protected]. Pls ensur who is he and also cancle my order.