oh no, the gift card ruse! not good. sorry to hear OP. its all good it happens to everyone. u gotta watch out for hustlers.
i've been scammed a few times. once i was looking for a job, tried to apply for the US post office, ended up "ordering application documents" and paying someone like $80 for a package that never arrived and a job that likely didn't exist. i was young and desperate. also been scammed working as a cashier a few times. there was this one trick someone pulled, they would buy something really cheap, pay with a big bill, then while i'm giving them change, start swapping bills, and asking for different denominations, totally playing me. he was very good, he had this routine worked out, and was excellent at social engineering. someone like that can probably walk around pocketing thousands of dollars a day just using their wits. that's kind of impressive.
after he left, i realized the dude somehow got me to give him $100, i cursed, went to the ATM, took out that much out of my bank account, and put it back in to cover the loss. felt like an idiot. sometimes you gotta mess up to learn what to look out for. keep your wits about, lot of scammers and con artists around...