Well, you can't raise a webform request until you've received your AOR. I mean you can but it will be pointless because they will not have your information on file.
What you want to do it wait until you get AOR and once you do, immediately raise a webform and let them know that you've made a mistake with the form and you'd like to update it. See what they have to say and go from there.
What you want to do it wait until you get AOR and once you do, immediately raise a webform and let them know that you've made a mistake with the form and you'd like to update it. See what they have to say and go from there.