Actually, should edit this title, the title should be more broad about US Visa’s anyway, but I digress..
To book appointment for the Visa consultation at the US Consulate or Embassay, you need to pay the Visa fee’s in advance. Instead of paying through the Consulate website, or as the process for Australia, or infact for Mainland services in HK of paying in person at the consulate/office, you need to visit a bank and make the payment there. I believe in Australia payment needs to be made at Australia Post.
Key bit of information not posted on any websites – the hours for the banks is 9am – 4pm, regardless of the branch opening hours they can’t accept payment after 4pm.
Time to try again tomorrow!