Neither the Slue's General Store nor the Metal Store sell bolts or arrows. They do sell crossbows and bows, though. I suggest adding arrows and bolts to their inventories.
this is because they want you to find the person who does sell them. This also forces a character to get a sending stone, indirectly.
Also, since when are goblins perfect merchants? :-D
Fixed.
(It kind of amuses me how everytime someone posts something like, someone else seems to think it was deliberate. I mean really, we're not THAT perfect)