No, you cannot get it for free. Call them on it. Tell them it was advertised as $0 and ask what happened. Sometimes, it's the website and navigating other people's websites is not always easy. The person may not have been able to easily figure out how to fix it, and gave up. What makes you think you would be entitled to it for free? You know a price was listed in the description. You said so yourself. No, it is not false advertising. It was a screw-up, perhaps, a deliberate attempt to get more people interested in the item but, any way you look at it, you are not going to get the item for free. If they wanted to give it away, they would have donated the item.