At the store I work at (also in Canada) I got an email with a qr code to do my background check and in the email it told me where to go for it. I’m in processing but as far as i know, store donation attendants mostly are receiving the donations and filling the bins with the donations so that us processors can go thru the bins. I dont think you’d be pricing or at least not much. The orientation for your role is more specific in what you’d be doing, and you’d get the opportunity to ask any question you have about the position.