You definately should be getting paid at 19 year old rate. Tell the pay clerk
it's his/her job to fix it. And yes, they are legally required to pay you the difference, even if it is small.
I used to constantly not get paid for supervision, because CSM used to just roster me as an operator (when he wasn't sure how to roster) and the pay clerk just fixed it up so I got paid the correct amount on my next pay, so you'll be right
And not 100% sure about study leave, but if you fill out the Unpaid Application for Leave form (should be able to find it on storenet) then you'll be fine. Otherwise, just write UNPAID LEAVE at the top of the paid leave form, but depending on your SSO, they may prefer the actual form.
------
Question for everyone on Kronos: do you Department managers actually roster flex-up ships and casuals? Our store just has only the permanent employees base hours on the roster (including online rosters). Any casuals who work get called in, usually the week before, and permanent employees have to sign a new temporary contract, which is normal, but it doesn't update on any of the rosters.
our CSM doesn't have access to the new rostering system... does anyone else's? Or are you all similar to our store?