I have only praise for Amazon who wrote and told me that someone was trying to use my debit card to buy something which I didn't usually buy. They asked me to verify the purchase, which of course I did not. I immediately contacted my Bank and cancelled the card, which was being used without my knowledge. I was very fortunate in that some of my loss was repaid by the Bank but if Amazon had not written to ask me about it goodness knows how much I would have lost.