if you pass the group interview they will either give you to a store right away or put you on hold.
eventually, after some time, after you ring them and get pissed off at the incompetence they will refer you to a store. you have an interview with the manager of the store.
the manager then has to get back to you to tell you if you have the job, this might consist of him/her never ringing so you keep ringing to check.
if you pass that they will send you an online induction. you go through some activities online. you learn safety stuff etc.
some stores still have the instore induction. you go and learn more stuff about the store instore.
then you have to be called to start work / training. this might also consist of you nagging and ringing to get some shifts. finally you might be added to the roster. or you might have to nag some more before you get added to the roster. when you're on the roster, if you work well, you should get at least 1 shift a week.