ISP: Virgin Media.
Type of Internet Connection: Not sure.
Internet Connection Speed: I believe up to 20mb/s.
Date & Time: Roughly 31/03/2014 00:20pm GMT.
Frequency: -
Character Name: Benedict Stark.
Race: Hyur.
World: Lich.
Class/Level: Goldsmith Level 10.
Area and Coordinates: Goldsmith Guild, Ul'dah.
Party or Solo: Solo.
NPC Name: Serendipity.
Monster Name: None.
In-Game Time: Unknown.

Steps:
Detailed steps on how the issue occurred.

The quest says I have completed 2/12 copper rings. I have 12 in my inventory. I don't know why it stopped at 2 and I am not sure when it stopped as I wasn't looking. I've tried logging out, abandoning the quest, etc but it just stays on 2.

Extra: I have noticed that someone from another server has posted the same bug report at the end of last year. Evidently it's not been fixed which is why I have posted a bug report myself.