Stardock will be closed for the week starting on Monday, June 29th and we will be returning on Monday, July 6th. We will be monitoring support tickets and forums during this time but expect delays in responses during this time.
Demigod Forums
You cannot buy citadel upgrade until you have enough gold for undiscounted price.
When you do buy the upgrade, correct amount of gold is used.
That is a known bug that the developers are working on. For more information you can check the following thread:
http://forums.demigodthegame.com/348086
Welcome Guest! Please take the time to register with us.