Bad information

The aquarium is amazing, and absolutely worth the time and price. What I didn't like is that you can reserve a time for 16:30. We did that, and when we get there were told "You need atleast 2 hours to see it all, so you better hurry up cause we close at 17:10" Which i think is extremely unprofessional. First of all, it says on Google they close at 17:30, not 17:10. Also, there shouldn't be a timeslot for 16:30 if we only have 40 minutes and we supposedly need atleast 2 hours.