Who called from 6505871572

i signed up for Xoom yesterday.
Now i am wondering if its safe to use this site for money transfers?

Got a call from this number 650-587-1572 this person ask all kind of question even my Bank Account number told him i will not give him my account for verification i well call Xoom my self i then called Xoom and they inform me that they dont ask from any B.A# so i give them the number

I end up changing my account at xoom and remove my bank account  even called my bank
I think this site is not safe

same here....from VA.
Signed up with Xoom but haven't sent money yet. Not I'm worried if I shld use Xoom.com.