They notified me by post that I needed to provide them with some information on their online tool. Here was the process: 1) Go to link, fill in form with personal detailed. Print, sign and post. 2) Receive a login password via post after 1-2 weeks 3) Login and do the the thing they asked.
Honestly why bother with an online system, just send me the form and I'll send it back. Done.
Also, applying to universities here also involves sending NOTARISED copies of all your documents, via post, along with the application. I don't think I've ever in my life applied to university by sending a thick brown envelope.