We rented a car at Malaga airport and had paid for the car in advance. When we got to the counter they asked if we wanted extra insurance. We answer no, we don't need that. When we got to the next counter to pick up the car, they asked for a credit card where they stated that they were deducting a deposit which we will get back on delivery of the car. They deducted 444 euros. When we got home to Norway, we got 147 euros back. I wanted to hear the reason for this and spent a long time trying to find the right place to turn to in this matter. When I finally got an answer, they said it was because we had signed up for Supercover! Which we never did. I've emailed back and forth to explain that we didn't ask for this, but they won't budge and won't refund! I feel this is really deceiving customers. Steer clear of Firefly, Cartrawler and Hertz. A good piece of advice is to read EVERYTHING on the contract, even if there is a mile-long queue behind you! Tell all your friends about this so they are aware of this practice.