"Amazon says they can't do anything because I got them at a retailer. And the retailer says they can't do anything because they are Amazon cards and they give no refund on them."
Scammers use a device to read the gift card before it is purchased. They spend the money almost immediately as money is added to it after it is legitimately purchased.
Cox is using the experience to warn others.
"This is not my fault," Cox told WFLA. "I am not going to buy gift cards again. If you buy a gift card, you're taking a chance."