Maintenance for the week of January 20:
• PC/Mac: No maintenance – January 20
• NA megaservers for maintenance – January 22, 4:00AM EST (9:00 UTC) - 9:00AM EST (14:00 UTC)
• EU megaservers for maintenance – January 22, 9:00 UTC (4:00AM EST) - 14:00 UTC (9:00AM EST)
1. You can get this invitation from another character after leveling him to lvl 45
2. Though it should be possible to take Undauted quest without invitation. Try to talk to NPCs at any undaunted base in a capital city