I'm writing this guide to explain how sellers can change the cost of shipping after an item is bought (but not yet paid for) and how Ebay policy colludes with the dishonesty. This is my experience which was confirmed by an Ebay representative. I won two identical .99-cent items with free shipping from the same seller and one with shipping. For reference the item numbers were: 160297217058, 160297227472, 380079675555 (one was for $9.99 shipping, a mistaken bid on my part) and the seller was longgeshuma394. For a couple of days, in "My Ebay", the transactions showed "free shipping" with two and $9.99 shipping with one. I waited until all three ended to pay and when I went to my Ebay "free" had dissapeared from the two  items that were bought with "free shipping" and there was no amount showing. But when I went to pay, each had $9.99 shipping that I could not change. When I contacted the seller about this, he claimed that I had bought all three items with $9.99 shipping. I refused to pay for them at first and then offered to pay tthe shipping on the one and he declined the offer. I reported it to Ebay through the email system and got the following response "Ebay does not investigate fraud complaints on closed items, nor will this department forward any such complaints to any other Ebay departments for investigation." In short, Ebay, by policy, turns a blind eye to such fraud and makes it utterly impossible to report it with this "closed item" policy, which to me is the same as colluding in the fraud. And there is no way to get Ebay to do anything about it short of a lawsuit because the fraud is perpetrated after the item closes. The Ebay rep I finally talked to about this confirmed that sellers can change the shipping costs after the sale but "they aren't supposed to." She even tried to personally  file a complaint about it for me, but she ran into the same stonewall policy of Ebay not "investigating closed auctions" that I did. The system wouldn't accept her complaint.

So usually I close my guides (which seem to be all negative experiences with Paypal and Ebay) with advice on how to avoid the problem. Unfortunately in this case, I have no advice to give except to not pay for items that the seller has changed the shipping on.