I rented a car in Germany back in October 2019 with Hertz (rented through Expedia). Everything went smoothly. Then six months later I received a charge on my credit card for $30+ from Hertz. I was unsuccessful at contacting Hertz so disputed the charge with the credit card company. The charge was removed from my card and I thought all was resolved. Then recently I received a letter from Hertz saying I owed 29.75 Euros (for a violation - but I don't know what violation) and that I was going to be sent to collections. They further said I was going to be added to their DNR (Do Not Rent) list. There was an email address in the letter that I was told I could use to get more information. I sent an email asking for more information, but they have not responded.
Has anyone had this experience before? I don't want this to affect my good credit so is it better to just pay it and be done? I know it's not that much, but I don't understand why they won't provide me more information.