I booked two excursions through Viator. One was on Friday and a second one the following morning on Saturday. Friday afternoon I started feeling nausea. I decided to do the Excursion despite feeling sick. I ended up vomiting throughout the Excursion and got a fever. I wanted to go on the Excursion the next day but was concerned because I felt so bad. I notified the Excursion that evening through a message and called Viator immediately. I left my phone number on the message. I received a call early the next morning from the Excursion asking how I was feeling and if I would be participating. I said I was still vomiting and still had a fever. We mutually agreed it probably would be best for me not to go. I made arrangements with my wife to take me to urgent care later that morning. Viator would not refund because it was not 24 hours. They want sick people to go on the excursions.