No matter who I talk too, they don't want to hear it and the quest remains ever unsolved. Also ended up with two of the quest items.
Steps To Reproduce the Issue:
Talk to the Thristwin learn about the medallion, tell him you dont want to help and he says ill do it alone.
Quest updates to go talk to Serel anyway so I did that. Itimidated then dex checked to get the medallion. Just to show her whos who for giving me a hard time, I killed her guards.
Talking to her again, seems to prompt the other way to get the medallion and she hands it over... again. So now i have two of them, went to try to give it to Thristwin but he still wants nothing to do with me.
Overall not a big issue at all, I understand pillars 2 must be on the front burner and if this issue goes unresolved so be it. Just a pet peeve of mine to have quest left undone.