Yes, the majority of hotel reservations are fully refundable provided that you cancel before the accommodation's cancellation deadline, which often is within 24-48 hours of your check-in date. If you have a reservation that's non-refundable, it may still be possible to cancel it and be given a refund within 24 hours of your booking. Enter dates in and click on "Search", then use the filter option "fully refundable" to review the best deals near GUM Department Store.