Not sure where to post this, but since the D3 forum has the most views.

[Mavfin]

Did it run out and you had to add the new payment method because you couldn't log in?

No, it never ran out. I just switched the payment method from one credit card to another.

I still have access to both my wow and D3 accounts, but the part I have circled in red worries me. I don't want to try and figure this out a month from now when I can't log into D3 for some unknown reason.

Is your Tyrael's Charger still there? You could always send an email through the web form to the customer people to verify that it's just a spurious message.