Parts Prices, WTF?!

Old lady across the street came over with a one foot long seat belt buckle knew from the dealership and said that her seatbelt won't click into her old one and asked me if I would replace this..
I walked over to see why it wasn't clicking in and tried it and it wouldn't work and looked inside her old seatbelt... Walked across the street got my pick tool and picked out the plastic shopping bag out of her old one and it worked fine... told her to take that new seat belt back to the dealership and get her money back...