Yes, most hotel reservations are fully refundable provided that you cancel prior to the accommodation's cancellation deadline, which is often 24 or 48 hours before your check-in date. If you booked a non-refundable reservation, you might be able to cancel it and be given a refund within 24 hours of booking. Plug in your dates, click on "Search", then filter by "fully refundable" to review the best deals near Santo Tomas Plaza.