Look. I am not going to give you my ex-boss' number. He'll tell you to fuck off quicker than I am. But since you seem to have very little else to do with your insipid life other than phone up strangers, I'll throw you a bone.
This is a payslip outlining my pay rates when I was working there. For retail jobs, casual rates go up incrementally every year until you are 21. So at 19, you earn 16.60, at 20, you earn 17.20, etc.
If this doesn't satisfy you, I don't care. I've got better things to do than continuously make you look like an idiot.