I forgot what i even filled out online. They called and the dude had an accent so i couldnt make out exactly what he represented. he knew my name i think? unless i confused watevr name he mumbled with my own. he asked me to verify the email, and he knew the email i said yea correct and he asked me abotu school and i told him i go in the fall. and asked if i was born in 90 or 89. i answered that. then hes like u hav any questions and im like not that i cna think of then hes like good bye..i said bye thank u...i dont know for wat tho.

im not sure wat kind of things anyone can do with the information there. im so worried anyone can help? or atleast calm me?
Additional Details
i was confused because i filled sumtin out.thats related to my university. so i guess its all coincidence unfortunately.

and all he asked was my birth year..not sure if he knew my month and day tho... =[ im scared. if there is a chance of identity theft..how can i avoid it?