Update 7:30 am EDT: The maintenance is over. All functions of the account center are available again.
We will bring down the Account Center for a short maintenance tomorrow, Wednesday February 6th, at 5am EST (11:00 CET). During the maintenance you will not be able to change subscription or redeem game codes.
At the moment we anticipate the Account Center to be back online at 9:00am EST (15:00 CET).
Thank you for your understanding.