I would put minus but no facility to do so . I booked a tour through Viator . Unfortunately our transport was delayed . I contacted the tour company from 6 am and other times during that day via Viator and WhatsApp to just reschedule . I had NO response from tour operator at all . When I contacted Viator to complain I eventually received a message 2 days later only because Viator contacted them . Surprise surprise the tour company is now stating too late to reschedule/ refund . But why didn’t they contact me on the day ??? I will pursue thus as it’s blatantly wrong for these people to be able to get away with this and get supported doing so .