Thank you so much for a detailed explanation. And all the very best in your job search..Mine took around 2-3 hours. The next day I received a message with a document saying it has been approved and the duration of the work permit (mine is until June 2020 which is when my passport expires). I've heard it can take 7-10 days for the actual document to arrive in your mail but some people say they got it within 2 working days. I got my approval on Tuesday so I'll update you when I receive something.