I recommend what Gloria said. Hope you have your receipt. Also, inquire with management h ok w the guft card process works. Then inform the petson on what transpired
Call the phone number on the card. Or the restaraunt itself. Hopefully the staff member didn't double charge you by mistake.
Call the telephone number on the back of the gift card. If not, call your credit card company and file a complaint.
Thanks! Your answer is awaiting moderation.