Just read about someone who booked a rental car for $570 and ended up seeing it spike to $2,300 just before her Hawaii trip. Wild right? Turns out do car rental prices fluctuate that dramatically because most companies have this buried fine print saying they can recalculate your rate if you make ANY change to your reservation — even extending by a few hours. She extended by a day and boom, suddenly the price jumped. The crazy part is there wasn't even a warning popup, just an email after the fact. By the time she checked again weeks later, the whole thing had ballooned. Car rental prices fluctuate so much these days because supplies are tight and demand is crazy. Hertz eventually honored her $640 rate after she pushed back, but imagine discovering that $2,300 charge at the rental counter. Makes you wonder if it's even worth booking ahead anymore, or if you should just grab a rideshare instead. Have you guys run into random price hikes like this with rentals?