Unable to log in

I registered for a new account, then clicked on the verification code. Unfortunately it did not seem to work. When I try to log in, I get the message "Log-in failed". I don't see an option for receiving a new verification code. I can't set up a new account because my email address is taken, and I don't see an option for "forgot password" or anything like that. I do not want to log in with Google or Facebook. I prefer keeping things segmented.

What's the workaround here?