I can only echo the sentiments expressed by many others before me - profound gratitude and appreciation for all the advice you and your fellow moderators have so generously provided. Thankyou.
Tod Daniels, thankyou for following up with this. I will contact the Embassy in Canberra tomorrow. Interesting that they are still quoting 400k/40k health insurance (which I didn't think was needed for Non Imm O).
the 'we' is my husband and I. He has OA visa (we applied for them at the same time). We went through immigration individually (one behind the other, so we each got the same IO). We were each told the same thing. We each signed the note that the IO added to our individual TM6 forms. Hope that makes things a bit clearer.
We are flying in to BKK with brand new OA visas (approved in mid October) on 13th November, so are watching the situation with much interest. Thank you to Tod, Robert et al, in advance, for all your information and updates.