What a scammer needs
Gift cards carry a stored balance. A scammer who gets the card number and PIN can often use that value without ever holding the physical card. That is why a caller may ask you to buy cards and read the numbers over the phone or send pictures of the backs. They can then disappear while the packaging remains in your hands.
Recognize the mismatch
A real store gift card can be an appropriate present or store purchase. It is not how a tax agency, employer, tech-support provider or family member's “emergency agent” should require payment. Pressure to keep the purchase secret or visit several stores is another sign to pause and call the claimed organization through a trusted number.
If the number was sent
Contact the card issuer immediately, keep the card and receipt, and ask whether any balance remains recoverable. The FTC's
gift-card scam guidance explains reporting to the issuer and authorities. A refund may be possible but is not guaranteed. Beware of a second caller offering recovery for another fee; that can extend the original loss.