The other day I was in a bakery in France and by accident, I obtained the receipt that was intended for the merchant – I did not get the customer copy. I saw that my FULL credit card number was displayed! Since I save all of my receipts I checked with previous purchases where I correctly obtained the customer copy and on those customer copies only the last 4 digits displayed.
I think this is really bizarre – like why does my own receipt have to conceal my own credit card number all the while any employee at a bakery can easily use my number and go online and do a purchase (provided the site won't need the CVV code).
Is this normal? Does the merchant really need my full number black on white in case of potential accounting issues?