I got another email from Hertz France today. They stated, as was said by posters here, that these E19.99 charges are "administrative fees" that Hertz routinely charges to provide my details to the ticket issuing authorities.

However, they also say that they cannot provide any further details, i.e., the name of the authority (the town) nor the offense.

So basically, Hertz can just say that they got 3 requests for my name, and that's it. They feel they have no obligation to provide any more information.

So what if they just made it up? Or more likely, what if the charges are from La Rochelle and I never went within 500 Kilometers of La Rochelle during my rental?

I need the name of the authority and the time date and offense they are charging. That's not unreasonable.

And, I find it hard to believe that the CC will accept the idea of "no further information."