On Quim Gil's advice:
https://twitter.com/#!/quimgil/statu...68859562291200

I've tweeted to Nokia Care (@nokiahelps):
https://twitter.com/#!/jonquark/stat...73643749015552

If it's still not clear to me what to do this evening, I'll start a thread (if no-one beats me to it) in the support forums linked from here:
http://europe.nokia.com/support/product-support/n9