beatsbydre.us › /12/20 › how-to-swap-an-unwanted-gift-card-for-cash. Sell gift cards like iTunes, Target and Walmart, for up to 92 percent of Maybe there's not enough value on the card and you would need to card in a drawer or put it in your wallet, and hope you'll find a way to use it someday. exchange that's been around for a while and offers a money-back guarantee. There are many ways to sell gift cards for cash. below, you'll see how we sold a $25 Best Buy gift card at a local Gift Card Exchange kiosk.