Yes, you'll find most hotel room reservations are fully refundable if you cancel prior to the accommodation's cancellation deadline, which is usually within 24-48 hours of the scheduled arrival. If your reservation is non-refundable, you might be able to still cancel and receive a refund within a 24-hour period of your booking. Add your dates and click on "Search", then you can filter by "fully refundable" to get the best options available near Plaza Belgrano.