This student's school may give leftover funds on a debit card. The student may be wrongly thinking that FAFSA provided the card.
1silent....If you have leftover funds each semester, and it's your school's policy to provide those funds on a debit card,, then you'll get it. The amount may vary depending on the number of classes you take, your fees, etc.
Do you attend a CC? Did you get a Pell Grant and/or student loan?