We had trouble with a holiday car hire we didn’t Budget for

I feared I would be charged with theft after a vehicle mix-upWe booked a car rental online with Holiday Autos for our visit to Rome. The confirmation stated that our provider was Payless and that we should collect the car at the Maggiore desk at the airport. We refused all extras as we had our own insurance. When we returned the car the rep checked the vehicle, but didn’t give us any paperwork. We then received two messages on our home phone from Avis, asking us to return the vehicle and l