Rentalcars.com is another scam company, which deceives consumers by advertising free cancellation, no hidden fees, customers’ support — all these things are not about this company. In fact dealing with rentalcars.com is a big headache and you will never get your money back if you cancel your reservation or something goes wrong with the rental company. Most of the companies on rentalcars.com are scammers who make consumers buy extras they do not need and thus increase the rental price in times.