I had a guest trying to return a shirt using her (non-REDcard) debit card. It kept saying "Item Not Found" but she insisted that she used that card and that she never keeps receipts since we can look it up for her... blah, blah, blah... Well, come to find out, the shirt was tagged for the Canadian stores and our register didn't recognize it!! It must have gotten to our store by mistake. I didn't know that sewn into the shirt is an American DPCI that we can use in a case like this! Thought I would share!! I love learning new things! ;-)