So my account ran out (low funds on the account when billing was due).

Now I only noticed this due to the account being shown as "frozen" on these forums, I had logged into the game as normal without any notice even a day after the payment was due (d3 enabled account too btw), so only the forum notice told me that my payment hadn't gone through.

So I went to account management and redid the payment and it now shows as active there. Still no interruption in game play (which I don't mind of course) but the account still shows as frozen on the forums.