I bought a children's game - not easily available now, for £5.00 and paid £7.00 postage - fair enough as it was £6.24 recorded delivery. The game was described as 'boxed as new', but when it arrived it was incomplete and clearly played with - there is a game card missing and no instruction leaflet - all the pieces were loose in the box. I am surprised, as the seller has 100% feedback, and contacted me promptly to say she had sent the item. I have mailed her - I wouldn't want to leave her a negative without giving her the chance to resolve it.
I am not sure what my 'rights' are on this - I have never had a problem buying or selling on Ebay (100% feedback as a seller and buyer) so don't quite know what to do! I paid via Paypal.