I have a Chase Visa, and last month, when I used it on the Opera Bastille site to purchase tickets, the transaction was denied. I got onto the site and confirmed the purchase, but it failed to go through again. So I had to call to talk to someone, which did work, but meantime the clock for how long I had to purchase my tickets was ticking, and I was afraid I'd loose them--fortunately, that didn't happen. I guess a transaction at 3am my time for a lot of money in France was suspicious, but I don't know why my first effort at fixing it didn't work, and neither did the customer rep who helped me. But having had that experience, I told her I'd be buying another set of tickets there in October. She said she noted it, but I'm going to call Chase the day before to make sure so I don't have delays again in getting my tickets. This was an inconvenience but given the recent issues with credit information being stolen and the prevalence of fraud, probably all for the best. I know that CapOne doesn't require travel notifications, but I will check with Chase before I travel again, as well as BOA, since I use my ATM to get local money.