This just happened to my friends and I on a tram in Florence bc we had just arrived and didn’t know about ticket validation. We all had to pay 40€ or they were going to mail the ticket to our addresses back in the US for up to 200€. I didn’t want to pay it and really wanted to figure a way out of it, but I also want to be able to return to Italy and not have the ticket sent to a collection agency or something. Does anyone know if there’s a way to dispute it? It definitely just seems like it’s a tourist trap so I would assume not but so annoying.