I noticed I made some mistakes in IMM5669 form, I used web form to let them know b4 I received AOR.It will not be considered misrepresentation if you will notify them in advance before they ask you.
So you are good. Resend LOE and updated form after you receive Application number.
Don't worry about this too much. In the end you will get PR
But how can I notify them in advance before they ask me?