It was not case officer. It was from skilled support team who does administration work for officers.
In the form 80, in employment section, we must indicate how we have been financially supported since DOB. I just mentioned history of my employment not unemployment. For example,I should have started from DOB to 6YO; from date of primary school to date of high school; from date of high school to date of diploma, then university, etc......
Actually in this section we indicate all employment and education history.
I also had a gap between my last education and first employment and I updated it and mentioned that I was financially supported by my father. Its important for them to know how we were financially supported during our unemployment period.
They just attached to tables in pdf asking educational and employment history without any gap.