I go to this Walmart couple times a month. Today as I'm checking out I try to us my credit card with the chip, I inserted the card and machine said damaged card or incorrect card. Cashier told me to do it three times and them slide the card. I did this about four times and still would not work. Cashier said wait till she is done and it normally works after the third try. Will I inserted my card three times AGAIN and slide the card it worked. All my cards have chips so was stuck doing this fire drill to use card. Wife said two weeks ago she did the same thing Walmart needs to get system working this is slowing down the check out lines.