I've just had a refund from a seller because the postage he charged was too much.
It was really kind of him to do that, as I'd only paid what was in the listing and probably wouldn't have figured out how much it had actually cost because the item is coming from the US.
I've written back to say thanks....
I don't think I believed there were still honest sellers on ebay who would refund without an argument...
My faith is restored.