I have many credit cards, but only one that I use for online purchases, (which are many ). This past summer I had almost $10,000 in various charges on my card over a period of 3 months. Many were for purchases out of the country. One charge was $1800 in airline tickets! Luckily for me, my credit card company canceled the card asap, and took off all the charges, but not after a lot of paperwork, and notarized statements from me for each and every charge...... I have been a customer of theirs for over 20 years, I wonder if that helped or not.