I booked with Holiday Autos for a car and additional child seat. I was quoted €25 for the car seat to be paid at the car rental desk. When I arrived at the car rental desk they told me that I had been misquoted and needed to pay an additional €60. They explained that this happens regularly with Holiday Autos. They said to let holiday autos know and they will refund the difference. When I contact Holiday Autos they didn't want anything to do with me and said all prices quoted are subject to error and change therefore they would not be making any refund. I would advise to never use these guys.