I can't login to any battle.net site, account management, forums, store, anything.
I've started the account recovery process, as the only thing I can think may have happened is that I've had a 'stealth' update on my iPhone authenticator and the setup code has changed, though I'm not sure thats even possible.
I've been trying to get through to Blizz support for the last hour, but get the 'sorry, we're busy, bog off' message.
I r a sad panda