Yes you are doing something wrong if your 3 step process expanded to 8.
Why would you not be able to take the matter up with council? Even if you do, they’ll just direct you back to Revenue NSW.
If you don’t deal with the infringement before the due date on the fine, Revenue will just commence further action against you down the line.
No just because a name is spelt wrong does not mean the fine is invalid. They’ll just reissue it with the correct details.