Last week I asked a US seller for a postage quote for shipping the Frenzy/Rumble Shadow Warriors to Australia.

The answer was $10, which I thought was very good, so I put a watch on the item until I got paid the following week.

Last night I bought the item and this morning the invoice arrived - with shipping and handling $28.

I've sent an email to the seller saying I bought the item on the basis of the price listed in their earlier email and want that honoured.

Is there anything I can do if they don't?

I suspect that what has happened is the person who answered my initial question didn't see "to Australia", but that's not my problem is it?