Have you spoken to the employer yet, preferably in person with a witness present who is on your side and can be counted on if the matter goes to court? And write up notes after the discussion while your memory is fresh.
Call the Fair Work Ombudsman for wages, and the ATO for superannuation.
What kind of work do you do? What award are you covered by?
BTW, payslips should also have been given.
Really really annoys me when employers take advantage of people.