They were going after money they actually had no right to in the first place. They sent my roommate and I each a bill and then 5 months later we were getting calls collection agencies. What happened in this case, as what I would guess is happening in yours, is that the rental agency started with collections agencies.
You'll receive your check once all of your financial aid, including supplemental forms of financing like ParentPLUS Loans, has posted to your account. In most cases, this occurs within 14 days of the start of classes for the semester. However, first-time student borrowers may experience a delay of up to a month after the official beginning of the semester. In all cases, refunds won't be issued for classes dropped after the drop deadline.
Refund Checks. Refund checks are the excess of funds from financial aid after all tuition and fee charges have been paid. Disbursement for fall 2017 refund checks will begin August 29. Direct deposits can take up to two business days after the disbursement date to show up in your bank account. Please allow at least 5 business days for checks to be delivered by USPS.