Continuing from sighting, https://southcoast-nsw.naturemapr.org/sightings/4539886.
I bought the case moth home and after a few days noticed it was covered in, what I thought were little insects, but when I looked more closely I could see baby caterpillars. I kept a few of them in a container and let the rest go in the garden. Continued on https://southcoast-nsw.naturemapr.org/sightings/4539901.