<prompt> Human: I usually check my credit card on-line several times a month. But I was traveling recently. I went over my credit card bill and found 2 charges to Walmart Grocery, their on-line service for buying food. I dont buy groceries at Walmart, in fact I avoid the chain as much as possible.My card wasnt stolen, I have it. I always check gas stations for skimmers after being burned by one 5 years ago. They usually install them on gas pumps. I dont use this card for restaurants so no server copied the card while going to the cash register. I dont know how they got my card but there they were a charge for 84 and 2 days later another for 87. Chase had me cut up the card and now I have to change all of my auto-payments. But I wont be buying Bubbas food or beer at Walmart.  <response>: Seconded! Just found that a restaurant overcharged me by 15.50! Called them up and they refunded me that day after looking up my receipt. 