Nothing
We booked and had a confirmation email with the price for the rental for 8 days. When we arrived the person at the desk had all our reservation information but said the price was 4 times what our email said. When we showed him the confirmation stating the vehicle and the price, he said “I cannot do that price, this is my best price” and the amount was four times our confirmed reservation amount. We have since checked back to see if we misunderstood the email but no, they just offer one price online and then when you get there adjust the price and will not honor the confirmation from online. The worst part is when this was happening the guy behind us in line said “oh yeah they do that all the time, every time I rent with europcar they charge way more than when you originally book, it’s a huge scam” he said the only reason he uses them is because it is a company card so not his money. I would NEVER use them again. We had to scramble to find another company last minute and got a car from them for a more reasonable rate.