The PIN is a 4 digit number that you find by scratching off the relevant panel above the barcode. Please take care when scratching off the panel as damaged gift cards will not be accepted. You can add more funds to a Gift Card in any of our UK and ROI (Republic of Ireland) stores to the value of £500 / €500. You cannot top up online.
A PIN is a Personal Identification Number unique to your Walmart gift card. You can find it on the back of your gift card in the bottom right corner under the silver scratch-off area. If You Don't Have a PIN. If you have a plastic gift card that doesn't have a PIN, you can use it at a store but you can't use it online at Walmart.com.