I bought an item from trade me today, and the seller had 1 shipping price of $13.40. No mention as to whether it was for a local delivery or NZ wide. I selected it and paid my money. They came back to me asking for the extra $4.80 as I live rural.  I have paid it, but my issue is that the postage was set on the listing and therefore if it costs more should the seller be able to come back and demand more money?  Their point was that because I live rural I should know to add $5. my view is, trade me providers a number of tools to enable the seller to calculate to the cost of shipping to give ...