I applied through other source. The process took 1 week. I interviewed at Aritzia (Vancouver, BC) in May 2017
Interview
Was asked to go to the store to meet up with the manager, chatted with the manager very casually and briefly. It wasn't an official interview. I think as long as she likes you you will be hired. And it is only a seasonal position so maybe that's why. But she mentioned that if you like it and they want to, they may ask you to stay as part time.