They are quick. My husband was on a Rome overnight a couple of months back. Met up with a QF buddy to see the sites.
I was at work in Australia (on a Sunday) when our Visa company rang to ask if my husband was in Rome, (I thought how clever they know his roster) anyway they tell me that they have just refused a credit card purchase of some considerable amount! Next minute husband rings and I tell him that yes I know he has had his wallet stolen. Not bad service from Visa, they were in touch before my husband. Lucky he only had a very small amount of cash and he had the internet credit card (only small limit). He always leaves the crew id etc at the hotel. Other than that he loves the place!