Had exactly the same problem recently. Won some as new esc cos eibach springs for £56. Had to e-mail for postage costs and got no reply. Thought he doesn't want to sell for this price.

You can request seller information and i got his home phone number. How shocked was he when i phoned him. Said he had cancelled auction and it was e-bays fault so i reported him.

Eventually after e-bay contacted him he agreed to sell with postage of £40

Anyway agreed and paid via paypal.

Three weeks later after no contact from him left him neg feedback and reported him to e-bay again for non-supply.

Surprise he then contacted to me to say he'd been out of country and would post item the follwing monday if neg feedback was mutally withdrawn. Agreed again remove feedback.

Came back from work on the monday to an e-mail from him saying postage was now £68 didn't think i wanted to pay that so refund my money.

What a timewaster.

Rant over.

Try the request for seller details though might be lucky