Welcome to the Community @PemWeno
(I adjusted your topic title to better reflect the content)
There are very few things that are illegal to sell in Australia, and many things legal to sell but illegal to use or illegal to use without an appropriate license.
Buying products without English language instructions usually happens only when buying off shore, but Kogan does have a ‘certain reputation’ for its marketplace. You might enjoy this old dormant topic, especially the first post although that one reads like a significant improvement on your experience.
If you search the Community for ‘kogan’ you will get many hits about this and that. Thanks for adding another.
