I couldn’t find the woman’s soul for sale either. There is this one though. Human Soul At least it provides more realistic expectations than the story below.
Here is a humorous article about a man selling his soul on eBay back in 2006. One has to wonder if someone actually won and bought it.
Even if it were possible, I would never want to buy someone else’s soul. As for selling mine, I doubt it. When my sister was in her last stage of cancer, I would have sacrificed my life if it meant that she would live, but offering my soul to another in exchange would require understanding what that entailed.