Avoid. Family holiday in Greece nearly ruined by deceitful practice from rentalcars.com. Local car rental company incurred in unacceptable behaviour on arrival, late in the night. Other customers also angry and in queue. Several children present. rentalcars.com initially agrees to my complain and refund. Then they begin putting new conditions, including that I should rent a new car from them for refund. I agree and book, and then new conditions begin to crop up in our email exchange (discounts, 24-hour deadline, and finally no refund). I will be looking for settlement and official complaint until the matter is fully and fairly publicized. While exchanging with rentalcars.com I was passed from one customer service advisor to another (6-7 in total, including online chats and emails). It is simply cheap and despicable that our savings end up in the hands of unscrupulous brokers when we are most vulnerable, with our families, trying to have a well-deserved break. I will go as far as needed.