For an ATO representative please:
See also a comment by @cgkeep in an older chat:
https://community.ato.gov.au/s/question/a0J9s0000001CXTEA2/p00024506
The link provided on https://www.ato.gov.au/About-ATO/Contact-us/Order-publications/ won't work for me either. I've tried both Windows and Mac machines with different security applications on each. FYI the fatal error message is:
This site can’t provide a secure connection
iorder.com.au sent an invalid response.