I think my school listed me incorrectly in the tuition thing you get in the mail to file your taxes as an undergraduate. Since it's what it said I was, when I was completing my taxes I checked off the box saying that I was an undergraduate reflecting the paper. However my school was in error because I'm actually a graduate student. Does the difference between being a graduate/undergraduate effect the amount you owe or they owe you? Update: sorry it's not reimbursement just filing my taxes.