After we had paid and thoroughly inspected the car, ready to depart, the staff rudely blocked our car, claiming that some guests upstairs needed this vehicle and we couldn't take it. I explained that we were short on time and needed to get to the Alhambra Palace without any delay. They wanted to switch it for a regular sedan which couldn't accommodate our luggage. Moreover, their reasoning was unacceptable; the type of car other guests use and the cars provided by the rental company are irrelevant to me, and I had no obligation to switch. However, the staff continued to insist and blocked us for more than ten minutes, causing us to miss our visit and rendering our pre-booked tickets useless, leaving us very disappointed.