We do our utmost to ensure that your Hailo vehicle arrives on time but occasionally, due to unforeseen circumstances, we may not be able to provide you with a vehicle on time. We work hard on ensuring that our pre-book service is reliable. Should anything go wrong (e.g. vehicle breakdown) please email us at email@example.com. We’ll keep trying to get you a vehicle, but if you don’t wish to wait beyond the requested time, you can cancel without charge by tapping ‘Upcoming Trips’.