Unfortunately long story. Booked a rental car half a year ago (we travel in 6 weeks) for a road trip and just... never again! We're still experiencing problems and each partner organisation (kayak, hertz, priceline) is pointing to each other for fixing the mistake we are repeatedly blamed of making ourself (we have provided proof that it isn't, but 'the system says...'). Most frustrating experience. Ruined what was supposed to be a long fun time of holiday preparations. Don't go there!