Thanks : )

Final note on this changeset, have pushed new changesets that make the tagging valid!

I pushed a new changeset which fixes these issues: osm.org/changeset/169911681#map=19/-32.120785/116.010878

Is it multistory buildings or also the ones that are not overlapping?

I apologise, I have adequate knowledge of what I'm mapping but I must be using the level system wrong, Could you tell me exactly what you want me to fix about this?