Yes, this company is a scam. We arrived a few hours late from FLL to San Jose Costa Rica, and they sold our car out to someone else and charged us the full price. After 2 weeks of bantering about with Booking.com - who we used to secure the car -- we were asked to read some VERY fine print about four clicks through a series of web pages that says that that they will cancel any booking if you are over 1 hour late. Stay far away from rentalcars.com.