I've token the paper of the dead miner but the king and the wife does say anything, and in marker in the map stay in the mines. Look, I'm sure I've the paper:
[spoiler][img]http://i.imgur.com/4KdoeUY.jpg[/img][/spoiler]
Hrmm... Did you quick travel out of the mines after getting the note w/o heading back to the door of the store room where you found the note? There is a trigger there at the store room door; im wondering if that is the cause.
The quest should expire and you should be able to do it over again. I havent had any other reports related to this quest. Sorry for the inconvenience. I will take a look at the quest to see if there is anything else that might be a problem.