How do I get back into my bitbucket account?

[Annette von Stockhausen]

Changed login to existent Atlassian account (as asked at login) and now locked out of my existent Bitbucket account. If I try to login to Bitbucket with my Bitbucket login, it says »You must use your email address when authenticating with your Atlassian account.«. If I do that, I'm asked »Please choose a username for your Bitbucket account.«, but I cannot use my existent username (i.e. Bitbucket account)... 

So, how do I come back into my existent Bitbucket account?

[Tim Pushman]

Same here... I want my Bitbucket account back!