eclare, Adelaide_bound - thanks for your replies!
For unknown reasons DIAC resigned from several medical centres that provided Meds for them, hence there are queues and higher prices. Also the existing centres are not evenly distributed across the country... but it's a different story.
lexbunde - I'm SHOCKED :) We lodged 2 days after you and we still haven't uploaded de-facto evidence (and this is a huuuge part!). And we haven't done passport photos either :D