Car: 2014 Aygo
Join Date: 18th December 2011
Thanked 847 Times in 734 Posts
Problem is some state absolutely collection only and 4 or 5 posts in they starts accepting different offerings for postage, couriers etc.
It should simply be a price for the item only with the words postage to be nogotiated separately, however this does not help those abroad as the postage could be prohibitive and the OP cannot possible know the cost to post to every possible country or location.
I also see quite a few where they state UK only, then when the offers don't come in it gets opened up to outside UK.
Quite a difficult one, I know on eBay they must list the postage costs, perhaps this should be the rule, it forces the seller to do a bit of research to determine the actual cost.
When I sold on eBay it wasn't a big hassle as you get to know the rates/weights.