This person is trying to get your information to use regarding financial aid and any other way they can get something and put it on your dime.  My advice to all is to let your voicemail pick up suspect numbers.  If its legal, they will leave a message and a telephone number to return the call.  If they don't leave a voicemail, block their butts.  If your looking for a job or waiting for a call back from someone, remember, THEY LEAVE MESSAGES.  PLEASE USE YOUR BLOCK NUMBERS ON YOUR PHONE....THAT'S WHY ITS THERE.