In Australia, I've found the "get one month of prime free and we'll expedite your delivery" offers, while pushy, clear and easy enough to avoid.

Likewise once you find the https://www.amazon.com.au/mc page, cancelling your membership from there is about three clicks through the "are you sure?" and "are you really, really sure?" pages not too hard.

I've probably had one month free prime memberships about three times now just to get the fast delivery. In fact I had a reminder for three days time to cancel the latest membership, but I just did it now. (I usually let it run for twenty days or so.)

I wonder if there are consumer protection laws in Australia that are limiting the amount of dark patterning they can do.