Maintenance for the week of March 25:
• [COMPLETE] ESO Store and Account System for maintenance – March 28, 9:00AM EDT (13:00 UTC) - 12:00PM EDT (16:00 UTC)
We are closing this thread as there has been multiple discussions on this topic. Your issue where you cannot join a 5th guild is something we are actively looking into it. For more information you can visit this thread in the Bug Reports forum.