You're right, by the time you arrived from Belfast, the property you were interested in had been let - we contacted you on the day to cancel. We're sorry about this, but in a busy rental market it happens - at no time would we suggest to you or any other prospective tenant that a property is somehow 'reserved' for them simply because they've booked a viewing. Equally the decision to remove a property from the market and cancel future viewings is not ours - it's for the Landlord of the individual property to make that call. When a landlord instructs us to stop viewings, we can't simply ignore him/her. Disappointed though you clearly are, we hope you managed to find something suitable.