DO NOT USE THIS COMPANY. If I could give Hoppa 0 s...

DO NOT USE THIS COMPANY. If I could give Hoppa 0 stars then I would! We had pre booked 4 hoppa taxis in total for our stay in amsterdam through the travel agent.
One didn't show, another was 22 mins late and another was 54 minutes late. So only one out of 4 was on time. When we called the phone number provided by Hoppa to make sure one of our taxis would definitely show up, the man on the other end of the line was extremely cranky and rude.