Unpressurised,
If your employer is dictating wages & schedules etc then by the ATO's definition, you are not a contractor. You are an employee & are entitled to (amongst other things) Superannuation.
Call the ATO. Their pet hate is employers who pull the contract/no super thing & this bloke will be up for a lot of back pay & fines.
I only know through bitter experience. Fair Work Australia explained to me that as a GA pilot I must be getting paid several hundred thousand per year & so not a priority for them.
AFAP explained to me that, although I'd been a member for several years
."We believe that it is not in our (AFAP's) best interest to pursue the matter". ugh: