Hello Freya,
like MSC alrady told you, you could have done the lower dungens with the Question Mark. These can also be done solo. If u want to make it solo.
Kind Reguards.
Hello Satsuri
The original question was: "What is stopping you from completing the Dark Reach Citadel instance more often?" Please scroll up to see it.
Now to answer your comment: Out of all Question Marks collected in lower dungeons, there was not a single E.
Anyway, I have got 2 more runs with a group in the Dark Reach Citadel, and this time I received wonderful 12 Amethysts! Thank you so much!
So, if you ask what prevents me from collecting more Question Marks, it is exactly that.