I understand your frustration, I had my interview 2 weeks before you and my file showed refused and at the time they said no additional documents needed.
Well I emailed them 2 weeks later and didn't hear back from them a week later for them to tell me that they're waiting for my police certificate since I did it wrong (jeez would've been nice if they told me this the day of my interview).
Like yourself I'm frustrated with the lack of communication and just how slow they are. I could've done my police certificate 3 weeks earlier if they communicated. I haven't been able to work for over a month and this is very stressful for me.
I'm hoping they approve you soon but I think it's egregious that it's taking nearly a month to just approve your medical.