This happened to someone I know and would like to get opinions. Say you list something on eBay with best offer option. A buyer makes an offer and you accept it. The buyer said they made a mistake with the offer amount (which you have to confirm several times btw and hard to make a mistake with) and wants to back out of the deal. My friend lets the person out of the deal and then blocks the buyer so she doesn't make any more "mistakes". The bidder has ANOTHER eBay ID and sends in a best offer to the same seller but a different amount. BUT because the seller didn't realize it was the same bidder, accepts the offer. But only AFTER she sees the name of the person does she realize its the same bidder. Now the seller doesn't want to sell it to this person because of how sneaky they are. It's things like this that make me really hate eBay. Bidders really need to understand ebay rules. So any opinions on this would be appreciated.