There's actually a few things that can't be sent to a parcel locker, which are sent via Aus Post (eg letters and anything requiring signature on delivery - if they're sent using AP, though, the items are supposed to be forwarded on to the address used to sign up for the locker. So, even if the courier items were ultimately lodged with AP for delivery, if they required SOD - as most couriers do - it never would have gone to the locker anyway).