I am locked out of this forum now

Hello, I am logged into the forum here with my iPhone.
I tried to log in with my MacBook Pro and there was a strange dialog to create a SteinbergID. I clicked and typed and somehow a new account has been created. It would not accept my regular email/password combination afterwards. After I gave the (right) combination into the login page three times I am now locked out for an hour. How will I get out of this misery?

[edit] I could get back in - by pretending I had forgotten my password.