Battle.net login problems

Hi! Just merged all my 5 WoW accounts into battle.net
When i try to login at WoW, i use Email to login, like the site said i should. Now i automatic log into my main account, and don't get the option to choose. When i try to login with my other accounts old user name, i only get authenticating.

What do i do wrong?

Edit: When i log into account-management, i do get the option to choose what account.

I had to delete (well, rename) my battlnet.dll file and have it rebuilt so mine would work :/

Tried to rename it, or even delete it...Then i only got "There was an error logging in"