We have just returned from Portugal and, as usual hired a car from Faro to drive via the A22 to Lagos. Thanks to previous remarks from readers we were aware of the new tolls and the latest update is that the only car hire company at Faro airport with transponders fitted to hire cars is Avis, who make a small charge to set up the system and then you pay with your credit card at the end of the hire. With all other companies you are responsible for paying the tolls at a Post Office within 48 hours of using the toll road, but beware some people who have hired a car for a few days, don't pay the toll and then the next unsuspecting hirer who does pay is also liable for the first tolls. We have always used Avis and we don't intend to change now. The flip side of the tolls is that the A22 is now an empty motorway.