Thank you for reaching out regarding this concern. It surely is unheard of for a bid to reach 5 million dollars on Tophatter. Because I cannot see the item that the bid was placed on it's difficult to say what may have happened. If you see this happen in the future please provide a direct link to the item by clicking on the paperclip icon in the upper left of the listing, then copy the URL. You can then paste the link into an email and send it to our support team for review here http://tinyurl.com/j8eo7hu