Lost BackUp Codes and Google Authenticator doesn't work.

Hi,

I’m afraid we only deal with the self hosted version of WordPress here, for WordPress.com account questions you should stop by http://en.support.wordpress.com/contact/ and they will be able to help you much more accurately than we can over here.

As mentioned, that is a WordPress.com blog, which we really can’t help with here.

To clear up any confusion, WordPress.com and ww.wp.xz.cn are two different entities: http://support.wordpress.com/com-vs-org/

WordPress.com has complete documentation and support contacts at http://support.wordpress.com/

The link Marius gave at http://en.support.wordpress.com/contact/ allows you to contact folks over there after initially searching for a solution.