Yes, most hotel room reservations are refundable if you cancel prior to the accommodation's cancellation deadline, which often is within 24-48 hours of the scheduled arrival. If you have a reservation that's non-refundable, you might be able to cancel it and receive a refund within 24 hours of your booking. Plug in your dates, click on "Search", then you can use the "fully refundable" filter to review the best deals in Universitário.