I have arranged a dinner for 15 people here! While...

I have arranged a dinner for 15 people here! While the food is very good, actually I think it is the best pizza I ever had in Amsterdam, the staff charged us many drinks in addition considering we will not notice. After paying for everything and leaving tips (good tips) we were short 15 . Adding everything up we saw at least 5 wine glasses were added.
Disappointed! Too pity, because the food was good as well as the service!
Will never go back!