It recently came to our attention that Steam in-game transaction for AP was not working. This issue has been fixed and all players using Steam can now purchase AP again! Hooray! We hope this didn't cause too much inconvenience for anyone.
If anybody ever notices an issue such as this occurring in the future, please do not hesitate to send in a ticket reporting the issue. You can always send in a ticket by going to "Contact Us" at the bottom of the website.