I submit a ticket, and the GM told me to post this here. (I know this isn't a bug, but it was what I was told to do. I can provide the ticket number if prompted to by a member of the SE staff).

I accidentally abandoned my relic quest while trying to exit the dungeon finder.

I read the faq, it says that GMs can restore items/what not. So if a GM could restore my quest progress that would be great.

I had just completed the encounter with Hydra, and was flagged to start fighting the primals. I was told you should be able to check my item held history, and see that I had an "Unfinished Thyrus" in my possession at one point.