I bought the game a few days ago, but when trying to update to the latest patch (1.06) I got an error saying my registration was invalid. When I try to re-validate I get the message in topic title.
How can I fix this? Any idea why it's happened? All I can think of is that I'm currently in Beijing, China (live in the UK) so maybe this has "compromised" the registration (happened with Starcraft 2 anyway).
Thanks for the help.