I walked 25 minutes to the meet up point and waited and waited. I found some wifi and had received a message that the guide had canceled after I'd left to meet him. It was too late to book another tour. I probably won't use this service again.
Response from João
Hello, i sent a message before the tour. Sms and online. If the people cancel the booling, i dont have more people, there's no conditions . Booking was not canceled online because of some technical problems.