Housing Deposit Help

So I need to revoke my housing prepayment for Fall 2019 because I got into a program at another school. Would I get a partial refund for my prepayment. I got an email back saying I would have to pay a cancellation fee? I am confused because I did not pick a room yet; I only picked the building. I wanted to see if anyone else was in this situation before.

It will cost you $100 to cancel the housing agreement. Once you signed the agreement there was $100 cancellation fee if you cancel before May 4th.