Hi TR,
I just had another look and the shipping option had vanished from the item. I've just re-added it and realised I had put a "$" the first time which is likely to have been the problem. However, something that may be an issue is the shipping cost I have quoted is not necessarily per item. So, 1) seller details are not listed so people cannot contact the seller to ask about shipping, 2) If it costs the same to ship 1 small number (I sold 2 units of an item to someone in Melbourne and the shipping price was the same for 1 or 2 but may have been more for 3) then the shipping price is more than actual cost.
Perhaps an option would be to have people contact the seller for a shipping quote and then have a field where the buyer can add a value themselves?