Rentalcars.com

I booked a car for my trip in Brasil, my credit card was charged I arrived to the counter and my flight was delayed. The Brasilian company that had my car said that it was released and no longer available and I can't reuse the booking I had with rentalcars.com I would have to contact them directly to get the refund. So I had to make a whole new reservation, I tried to contact them from Brazil but it was impossible, so when I got back home I tried all the local numbers they have on their website and non of them existed, so I finally called there UK number (long distance) and the recording gave instructions to follow on their website. I did that, I was told that my claim is being reviewed and that they will get back to me. I waited a few days and I got a response from them saying that the car was on hold for me and that since I missed the pick up there will be no refund for my payment. Keep in mind that the rental was for a full month and they had charged the full amount upfront. They didn't even bother offering a voucher to use in the future, worst service I ever saw in my life, if I could give a negative star review I would.

Similarly to others here I had a nightmare and would always go direct in future!!
I pre-paid. My flight was delayed - contacted them asking for contact details for SIXT so I could let them know and they don't have any!! SIXT closed before we got there so I forked out for a hotel - went back the next day and picked up the car - BUT no record of my payment. I had to pay again and seek money back from rentalcars. This i do and lo and behold they say i need to claim in from SIXT because..get this...I breached the contract because I picked the car up a day late (delayed flight, and SIXT office closed before we got there I.e. out of my control AND I notified them both)!!!!
So now they pass the problem back to SIXT who are trying to fob me off with a voucher!!!! Needless to say I do not intend to use either company again.
Go direct- having a middle man just complicates everything and doesn't benefit the customer!!!!

I paid online, full rental price, I get to the Sixth rental desk. The guy tells me I need a credit card which I didn't know I had to have one. They couldn't help me. So I go to get refund from rentalcars.com chat, they were not able to refund me anything. I feel like I was robbed of $850. Don't use them as a third party booking. No help at all.

Total Scam. They charged me an extra $300 to upgrade to an SUV and then gave me a station wagon. Apparently in small print it says "or similair." The roads I was driving on needed an SUV. Dont deal with this company!

Hi! I had a very poor experience with them.
Their T&Cs and call centers confirmed my ability to travel with the rented car to italy and in the end they left me stranded with wife and 4 kids at the airport.
They did not take any responsability for the mismanagement "we cannot find the conversation you refer to" and took no ownership to solve the problem or compensate me.
Will NEVER use them again