Fredoc Hedger's Quest, Order #42 has a bug, I imagine. When you make your bluff check successfully, saying that it cost 100 coins, he says he'll give you a bit extra for your troubles, but you still only get 100 coins altogether, same as if you didn't lie at all (I think, haven't been an honest guy in forever, lol).
I think I recall reporting this bug a very long time ago.
Anyway, confirmed.