form 1229 issue

Dear friends,

Recently I lodged my 189 visa. I have included my son who is below 18 years old along including wife. However I have mistakenly used the form 1229 and signed by me and wife and uploaded in immiaccount. I didnt know it was supposed to be used only parents are non-accompanying and their child is migrating with someone to australia. What should I do now? should I message in Immiaccount for uploading the wrong information. Thank you all