well part of this SCAM is to verify your SS #. This is a clear case of a criminal from overseas calling to steal your identity.  And this group of Indian [***] (being hungry and living in [***]) have been calling people all around United States. I think the FTC has received enough complaints of this particular mode of fraud that they are starting a serious investigation.  
And BTW, they are hackers who collect people's banking information, and try to hack credit cards. They just call you to BS (with the limited information they have collected through hacking). For example, they say " is your bank XXX, or is your email XXX. the funny thing is the guy tells me that there has been Fraud associated with my EMAIL!!!!!!!  all you can do is laugh and feel bad for these retards.
They think they are smart, but just a group of hungry Indians. Basically, their lunch depends on how much they intimidate you. If they are successful, then they can eat a meal.
In reality they are just fighting for their next meal.
but you all know that.