the merchants seem slightly broken. When I tap on an item I can’t afford I still get the effect. It doesn’t show the animation of buying it, and it remains in stock. This definitely works for the mimic, and heretic soul guy. I found this out on accident because it doesn’t tell you how many untouched chests or souls you have until tapping on an item. While testing I ended up being able to decline 23 times per area. (I’m playing on mobile.) the game is quite fun notwithstanding.