Incorrect.
Recognised flight time is defined in CAR 2
(d) in the case of flight time in a glider, or power-assisted sailplane:
(i) flown by the holder of an FAI Silver C Certificate, or a
higher certificate, issued by the Gliding Federation of
Australia; and
(ii) recorded in the holder’s log book and certified by a member
of the Gliding Federation of Australia who is authorised by
the Federation to certify flight time; or
..only time flown after the issue of a Silver C may be counted and that flight time has to be certified.
Experience requirements for a CPL of non-commercially trained persons is in CAR 5.115 - as stated only 100 hours can be counted.