I use Trello with my googlemail linked to an Atlassian account. My email address / atlassian account seems to be linked to 2 trello accounts, one with my initial user name and one with my user name and an additionally "1". I now cannot log in in my account with my initial user name, where I have all my boards. How can I "de-link" the second account from my googlemail / atlassian account? I cannot access my boards.