We have used rentalcars.com on a number of occasions. However, on this last occasion, they did not provide us with full and transparent information. Consequently, when we arrived in Spain it cost us an ADDITIONAL £500 to rent a car. Since returning almost 3 months ago, rentalcars.com management have refused to answer our numerous e-mails. They will TAKE your MONEY, but will not look after you as a customer when they have been negligent. DO NOT USE rental.cars.com. I was once an advocate, I am appalled now by their behaviour.