Rentalcars.com took no responsibility for issues with the booking. They tried to find every loophole and did not resolve the issue, it was the rental car company Sixt that actually helped and were very good. The rental cost more than Rentalcars.com said it would and they would not refund the difference I was charged. I will not be using Rentalcars.com again. I opened a complaint with them and the agent kept emailing to say that they were looking at the issue, yet it took a month to come back and basically say contact Sixt. Nothing against the agent, but a very poor experience and I will now always go direct with whichever company is actually hiring me the car. I would recommend not booking with this company. I did to try and save money, but it actually ended up costing me more!