Unable to use authenticator?

Hey! so I canceled my account a couple months ago, and was thinking of re subscribing but when I went to log on today my authenticator isnt working. I know my N.net email is right as is my password, but when I put in my authenticators code, it says login failed.

This character is my brothres account which he is letting me use to try and recover my account. Please let me know what I need to do to get my authenticator back to working status. I tried using the automated system and all it did was have me reset my password.

Thanks in advance for the help. I will check back often. let me know what i need to do.