Included as part of Bing Lee's EOFY sale which ends tonight, and beats typical Office 365 sellers like SaveonIT, without having to risk other dubious sites.
Email with codes came through 10 minutes or so after placing the order.
Ebay Listing for anyone with discount codes:
https://www.ebay.com.au/itm/165163621484
Thanks to BDL.
Much cheaper here https://www.ozbargain.com.au/node/755738