I agree
That is up to the seller to inform other buyers that those items are on hold.... as if they did properly then the other buyers would not even have a chance to buy them.
Although I'm sure if someone offers more I can see why the seller would prefer the higher offer, however they should FIRST inform the original buyer that they have had a higher offer and if the original buyer can match it then its his. Am I making sense? hehehe.
-Diana