To change settings you have to be leader of that guild or vice-leader: Raizem On Utobra Amora Bomba Biel Fallout Sertraliina Tabel Fadil.
In character comment at Tibia.com add following code:
guildstats-1316c
If you have made it, just choose your country and click 'Set', to confirm new settings
In character comment at Tibia.com add following code:
guildstats-1316c
If you have made it, just choose your country and click 'Set', to confirm new settings