I'm sticking to option-1. I had already one webform for sending some additional documents which I missed during initial application. My parents have been to Canada a few times now and just below that selection they have a reason to visit me (which is quite explanatory that I'm non-dependent).I wish I knew.
We have three options:
1- do nothing and hope officer is gonna he OK
2- submit request to change with info through webform (not sure if this will delay the application or even get accepted)
3- withdraw and reapply!
I am leaning on option 2.
Fingers crossed