In August we hired a car for a week at Faro airport and were told of the new motorway tolls. When we asked how we cold pay these we were told we wouldn't be able to do so as we needed to be informed of the charges by post and shouldn't worry about it
Later we found out that we could pay in post offices/ some shops but when we went to do so found the charge for our car included several other previous hirers motorway charges- a large total amount we were unwilling to pay.
On returning the car we asked the car hire company if we could leave an amount to pay for tolls with them. They said no, and we shouldn't have used the motorway on our return trip if we couldn't pay. What repercussions are we likely to face ?