When I arrived to pickup I was advised that I could not use a debit card to prepay for the rental. The Hertz manager said that even thought it was prepaid with a Visa debit through Kayak, they could not honor the rental because I used a debit card instead of a credit card. She was able to make some adjustments and allow the rental with an additional $500 hold on my debit card for a $60 rental. She also informed me that if she had not been working, they would have denied the rental. I probably will not book through Kayak again based on this discrepancy.