We apologize that you are not satisfied with your tour on the Easter holiday. First of all, we were about 10 minutes late (the official tour starting time is 09:00 AM). The reason that the driver later to pick you up because one gentleman in the group was not yet ready when the driver picks him up on the pickup location. We communicated with you that the pickup will be about 15 minutes late, and we informed you about that. The driver/ guide did explain the history of the places, but maybe not elaborated enough for you.
At first, I gave the group the chance to walk around Zaanse Schans and secondly because the group could get lunch separately and later we able to meet in one hour time after lunch.
About the transportation, If we have a minimum of 5 people in total, we arrange a mini-van (like the other group), less than 5 people we normally provide our customer with a sedan.
We hope that you understand the real situation.