OK guys... so I had a chat with one of my Italian Facebook friends, and he confirmed that Cooperativa RadioTaxi 3570 is not accepting direct payments in Bitcoin. They are using a third party payment gateway. Users can pay with Bitcoin, and the driver will receive this payment in fiat. The drivers doesn't even know that the original payment was in Bitcoin.
Anyhow bitcoin users have got one more service added to the bitcoin acceptance list. Previously in a tourism service provider bitcoin acceptance was started with the help of a third party service provider who pays them in terms of fiat same as this. But the service got quit in a very short time as there were only few people using the service. Lets hope such thing won't happen with the cab service.