I've been hit by the Canadian lot as well. ?1k over the weekend when I was at weddings and hadn't noticed until I tried to get cash on Sunday. Barclays apparently stopped 14 transactions, but only after 7 went through! They also sent me out a letter in the post that still hasn't arrived. Why - when they have my mobile number - do they not just call dammit? Seems like Barclays are one of the slowest banks for spotting fraudulent activity, stopping your card and informing you. Lets see how speedy they are in reimbursing it too!