last month I noticed two charges in the same amount on the same day at two different wallmarts that neither I nor DW had made. I contacted the cc co. to let them know. Also around the same time the cc co. sent us new cards to replace the old ones. I received a letter today saying that whoever made those purchases swiped a card in the self-service line and that I am responsible for these purchases. We never lost a credit card. I will be calling them in the next day or two to let them know I will not be paying for those charges. Has anyone else had this situation? Isn't there a legal responsibility to make sure the person using a credit card is the actual person?