You might consider selling your Walmart card by listing it on Craigslist, Kijiji an additional local classifieds online or maybe in a mag.
For that reason store specific gift cards may stop the preferred gift for some. Nearly all them do not come using a PIN. I'm lucky I can feel things so far. https://groups.google.com/g/giftcard-mall-my-gift-info/c/lJb4jNQqwjY