I have a Thai wife and I know the ropes we had to jump thru for her to be here,, OUR daughter was our saving grace,, Moo has a son and has been knocked back many times in attempts for him to visit even tho his mother and 2 sisters have PR status, it's a shit Government.
Sheridan, it is very difficult but if you reseach and take in all the information that you can gather it is definitely not impossible,, keep searching all the threads and you will do ok, work with a visa agent if you must and can afford it, good luck with it all,, having kids expedites the situation 😀
it seems to be contradicting itself, suggesting if you cannot produce the required paperwork you just need to undertake a covid test on arrival, paragraph 5.