1i will try to compile all the info here for you
you will not be able to repeat this glitch as it was supposidly fixed 3 months ago
ISP:
Century Link

Type of Internet Connection:
VDSL

Internet Connection Speed:
Download Speed: 15mbps (That is while I am on XIV and Canthor is playing LoL).
Upload Speed: .70mbps

Date & Time:
AUGUST 18 or 19, 2013 @ 11am-ish

Frequency:
Once

Character Name:
Canthor Syren

Race:
Hyur M

World:
Excalibur

Class/Level:
Marauder lvl 10

Area and Coordinates:
Western La Noscea
X: 34 Y: 31

Party or Solo:
Solo

NPC Name:
Swygskyf

Monster Name:
None

In-Game Time:
It was daylight.

Steps:
Clicked on NPC. Server lagged. Accidentally clicked "Abandon". Can no longer accept guildleves.
Reported issue on 09-04-2013 at 05:17 PM
Reported issue again on 09-07-2013 at 08:03 PM
Reported issue again on 12-19-2013 at 01:59 PM

this is a post from another player


Sagittarian
Player

Sagittarian's Avatar Join Date
Dec 2013
Location
Gridania
Posts
66
Character
Nesshin'na Kasai
World
Malboro
Main Class
ARMOURER Lv 50
btw, I hadn't unlocked the leves in Blue Fog so I went to test .. it doesn't let me abandon either the 'parent' or the leve itself. It may have allowed it before some of the patches .. not sure. But it definitely looks like you are in a bugged state now - there is no way to duplicate the issue if the system is working properly. No idea what to do beyond what you done in reporting it to support.
I'm guessing the specific situation is rare enough that it hasn't been directly addressed. It needs an update to your specific account.

links to past posts
http://forum.square-enix.com/ffxiv/t...30#post1708330