Have restarted this quest multiple times. Did the "find three objects" part before while in disguise, talked to the mine door while in disguise, lied, dialog said I got in, but the door just opened and shut. Then when I clicked the door again, it said "hello?" and "no one is there" and said I could enter. However, the door just opened and closed again.
I've tried this multiple times, logging out, logging in, with a group, without a group, with a disguise, without a disguise. Please help!