This is not a mistake it's attempted fraud; walk away.
I would check it out.. be wary of it. Probably not a mistake.
very common
Im buying a car tomorrow, I saw it a couple days ago and his dashboard says 130,000km on it, he says its 130,000km on it, but i went and paid $20 to see car history later, it shows 230,000km, is this a mistake? Need an answer quick!