Verifiable Reference is a secondary ID.
Have you known someone in Australia for more than 12 months?
Reg 6.04(4)
verifiable reference about somebody (the identified person)
means a reference from:
(a) a bank or similar financial institution; or
(b) somebody whose identity has been verified by means of:
(i) 2 primary identification documents; or
(ii) a primary identification document and a secondary
identification document; or
(iii) a primary identification document and 2 tertiary
identification documents; or
(c) a referee acceptable to the person or body that requires the
identification of the identified person;
that:
(d) identifies the identified person by name; and
(e) certifies that the person who signed the reference has
known the identified person by that name for at least
12 months; and
(f) is signed by or for the referee and by the identified person.
So just a simple statement on the page saying "I ------ (referee) have known -------(applicant) for a period of ------(years).
signed ------- referee --------- applicant
Attach certified copies of primary and other ID and voila!