Never order from them without verifying to which car rental cy they subcontract.
I paid 147 to Rentalcars for 2 weeks and they subcontracted to Centauro in Malaga. Centauro proposed me a full insurance for 228 (150% of the rental cost) that I refused. Inspecting the car before departure, I discovered 3 defects (one was highly legible) not recorded on the printed contract. When I came back, they discovered a scratch that I did not find initially and after 10 minutes discussion with their representative, he agreed to not charge back anything, signed my original contract with the date (8 March), his signature and an OK. Back at home, I found contrarily to their signature they picked up 250 on my credit card plus 25 for fuel service although I came back with a full tank. My complaint to them and to Rentalcars while providing my document with the OK on it was unuseful. Concerning Rentalcars, although I demonstrated to them the justifications of Centauro were either false or not exact, they did not care about my arguments. Concerning Centauro, in addition to the fact they give you a car with hidden defects not recorded by them, they very often use the same credit card charge procedure without advising you with a lot of their customers. If you don't believe me, then look at the following web site and some of the 218 reviews: http://www.reviewcentre.com/Car-Hire/Centauro-Rent-A-Car--review_4138633