Any way to get a role on Home and Away?

I have quite a bit of experiance, been in a BBC drama (as a younger
version of an older actress), a West End play (just an extra), several
theatre productions around my area, including two lead roles, and
youth theatre. I have also been to Sylvia Young Theatre Summer school
three years running on a scholarship.
I also have training in stunts, accents, archery and surfing from
proffesional teachers and certificates to prove.

Anyway, I dont have an agent as of yet.But Home and Away is one of my
favourite soaps, even if it is in Australia and Im in England.
Im just wondering if anyone knows a way to get onto this show? Even as
an extra, but I would love a main role, or do I have to wait until I
have an agent?

Im just turning 17 and my auntie lives in Sydney and I plan on moving
out there to study if I can get a visa when I turn 18

Any help would be great!