Seen this happen quite a number of times. Also not sure if this is all the time as well but I most recently noticed this on a Transformers #1 CGC comic from USA. It was showing at around $19 shipping on my search page and shows the same number on my watch page but when I clicked into the actual listing shipping was about US$75!!The actual sold price on bid was pretty much just a bit more than it would have cost to ship to Australia and no it wasn't me who won it as I left that auction well alone!