Hello,
we apologize for the inconvenience. As per tour information, a minimum of 4 people is required for the tour to operate, and on that day/time/booking, it was not met. Also, it states traveler should contact us 48 hrs before the tour to confirm tour details and starting time. Lastly we did offer a full refund, even though our guide waited for 20 minutes with other participants. given starting time was auto changed to the operating tour schedule.
Nevertheless, We extend our apology for the inconvenience and offer to make that up next time you are in Croatia.