If we fail to claim the bone as a reward is it possible for us to get the piece without having to redo the quest? Such as buying them from a vendor or something?
I kind of expected the undead peddler to like the npc from SoD, WHO is placed in guild lobby, so those you had completed, you could buy from there.
The undead peddler sells any missing bones once you finish all 28 merc quests in Thuliasaur. One of the bones can only be bought from him because the HA doesn't give item rewards.