We booked a car in advance at Barcelona airport without insurance. The lady (staff) at the Goldcar desk tried to deceive us multiple ways. Here is how it went: First she tried to push us to buy insurance (roughtly 1.5x the price of the car rental) and to pay for some additional tax which she said was not included in the booking price. We said no. Then, because we have had only debit card, she told us there is a deposit roughly €1500 (this is correct and we did know that in advance) to cover damage etc. charged form the debit card. And then... she said there is 12% nonrefundable fee from that (it would be €180) which the bank will charge for the tansaction. She also said, that is the reason, why is better to buy insurance. She gave me business card with customer service number and said I can verify that. I pulled out phone to call them. She probably did not expect that and said that customer service is rented call center and that they know much less then them at the desk. At customer service line they said there is no such a fee (also, the transaction fee was not charged to my debit card later). So again, we said we will proceed without insurance. She gave us a paper and said to sign it at the bottom, that the rest of it is NOT IMPORTANT. We have read the paper and there were checkboxes "with insurance", "without insurance". Neither one was marked, so I bet, she would check whatever she would want (only my assumption). So I marked "without insurance" and signed at the bottom. At the end she asked us to sign the contract electronically on touchpad. We said we want to see the contract before signing it. She said ENOUGH and tore the already signed papers in parts. She said they will give us back rental price and deposit (fortunatelly this really happened later) and that they cancel the contract. We were left at the airport without car in the middle of the summer season, when the prices are high. Fortunatelly the competing car rental company know them and after hearing this story, they gave us a great discount (cheapest around, even it was 3x higher than original booking at Goldcar).