I have had a postage issue recently. I got a similar reply from Ebay administrators. There is not much you can do after you win the item they take no responsibility for any issues. My problem is we were told by the seller that the postage was $35 and this was stated on the item so I paid for the item & postage. He emailed me 2 days later and said postage was $100 than what was listed on the item so he needed more money. What a joke I told him he wasn't getting anymore money. I have organised my own courier to collect the item and its only going to cost $30. The item will get here today I hope.