Oval,
http://www.cad.gov.hk/english/pdf/CAD382.pdf
you might want to read up.
You can always email
[email protected] and confirm.
If the CSD emails you and tells you that the report has been submitted to the CAD it's safe to assume that it has been done. Yes they cheat and lie, but they're not blatantly that stupid when you can easily contact CAD and verify.