I just did plunder mission #6, where you are to bury a treasure. It says the reward is 25 turns (the minimum amount you are to apply to hiding the treasure). The reward was 25,000 gold coins, not 25 turns.
Edit: Sorry, this probably should have gone in the typos thread.
Edit again: After posting this, so a couple minutes later, when I went back to the game it looks like I got the turns and 25k gc?