ISP: Sioux Valley Wireless
Type of Internet Connection: Microwave
Internet Connection Speed: 3mbps
Date & Time: March 13, 2012 Time is hard to tell, but before the post time and during the afternoon/early evening CST
Frequency:
Character Name: Chardut Mazzma
Race:Roegdan
World: Figaro
Class/Skill Rank: ARC/BRD 50, THM/BLM 50, CRP 46, AlC33, CNJ/WHM 42, Cul 22, Lancer 39, Glad 15, Pug 15, Botanist 41, GSM 10

Area and Coordinates: [respective guilds of Carpenter, Botanist, and also Alchemist]
Party or Solo: Solo
NPC Name: [at least, may have happened at Archer's guild or Conjurer's guild as well, but I don't think it did] Kylene [alchemy guild], Frances [Carpenter's guild], and Kipopo [Botanist guild]
Monster Name: N/A
In-Game Time: unsure
Steps:
1. Talk to NPC
2.Ask to be reimbursed for guildmarks
3. Talk to NPC again to exchange marks for gil, but only a portion of the marks will be exchangeable. If you exchange, then you have no marks remaining.

screenshot for example from Alchemist guild [this just happened at 12:05 AM CST 3-14-12:
http://dl.dropbox.com/u/18930059/buggedoutmarks.jpg