Snapdeal.com — customer care executive misbehaviour

I had recived a call from the number [protected], he is claiming calling from snapdeal.com, Delhi and he took my number from just dial listing. he asked my name and mail id which also listed in just dial. But he also asking for my PAN Number. I questioned for what purpose you asking it? He is changed the question only you are having PAN number or not. I informed about my number is listed in Do not disturb directory they why did you cross check before making a marketing call. The stupid is argue why did your number listed in Just dial. Pls beware of the kind of calls and never reveal your confidential data. The thieves are ready to stole.