sorry, but I can't really see what you are complaining about, the charge is not justa postage charge, you are allowed to charge a reasonable amount for handling. You dont know the guys circumstances, I know personally if i have to send something to someone i have to travel 20 minutes to the nearest post office, and 20 minutes back, with the queue's it might take as much as an hour out of my working day, plus travelling costs etc. i have seen people charge a lot more than that for postage of small items.
Ebay say that you may not charge an excessive amount for handling, but i don't think you could accuse the guy of charging excessively, that rule was brought in to stop the people who list items for very low prices but charge the cost of the item in the p+p fee (thereby avoiding ebay final value fees).
It's not as if he's ripped you off your life savings, just leave the guy positive feedback and be done with it, and in future check the postage charge before you bid.
