Yes, you'll find most hotel bookings are fully refundable as long as you cancel prior to the accommodation's cancellation deadline, which in most cases is within 24 or 48 hours of your arrival date. If you have a reservation that's non-refundable, you might still have the option to cancel and get a refund within a 24-hour period of your booking. Add your dates and click on "Search", then you can use the "fully refundable" filter to review the best deals near Plaza Belgrano.