Indeed. I often see people suggesting to use Gyft for buying these cards. Some people also recommended Egifter (https://www.egifter.com/) to buy such giftcards. You might need to pay a bit more than you have to pay for such gift cards on this forum, but now you're sure these cards are legit. In the end, it might spare you some money (as you do not end up with a illegal gift card - and therefore your balance deducted).