Rentalcars robbed me of 80 euros. Rentalcars tricked me into renting a car by offering 'free additional driver', as advertised on their website. I payed in advance. At pickup, this promotion was not recognized by the car rental. For an additional driver they had to charge us around 100 euros extra, which is more than the car rental itself. Therefore I decided to cancel the deal and later rented a car with a different company. Rentalcars refused to refund me the 80 euros. The only way you can contact Rentalcars is via mail. I reached out numerous times but each time they just respond with a "NO refund" and the same shallow argumentation - untill you as a customer can do nothing else than give up.