Terrible experience on return. They take money from your VISA without any reason, without explanation and without notice. Apparently we had passed automatic toll gates on the way from faro to lagos, those tolls are registered on a small windowbox in the car. Checked, toll from Faro to Lagos is 6.60 €. Surprise Car Rental charges 180 € for this toll. Nice profit margins though. So they just take that from your VISA. And that is all possible. You will not see proper explanations and official evidence, so a hopeless story. For us the first and last time!