I'm aware using different sites give different prices. Hertz.com and different then hertz.co.uk. But I have found a issue which is serious.

Using the same sites I go to book a car one day rental in Italy it's $80AUD . Then I log into my hertz gold number it goes up to $278€ for the exact same car . Same locations . Now thats a huge difference , so I checked other sites and it appears every time I log into my hertz gold rewards it triples the prices even with my pc discount.

The work around is I make the booking and then add my hertz gold number later but my concern is how long before I got onto this and who else is affected!