Dear Jenny,
We are sorry for the experience that you have. A few clarifications are necessary to avoid any misunderstanding.
1. The other group was informed with 48 hours before the tour starts about the meeting point. As you have been notified by an email from TripAdvisor about the meeting point, the same they received one message. We don't have access to their email addresses, and all notification is through TripAdvisor. We are following the same procedure with all our clients. If they booked through a travel agency, they went notified for sure.
2. The group decided to leave the tour only after one hour because they had a table reserved for1 PM. This was their decision and had nothing to do with the trip or the guide. As you said, she was very professional.
3. This is a walking tour and no entrance fees included. We are entering only in Cathedral, but this is closed now.
Thank you for let us know about your experience, and based on that, we have improved the communication between tourists and us, especially regarding the entrance fees.