Their number is 133673 (Ford Customer Relations Centre).
They will normally ask for a copy of your drivers licence and proof of ownership. If you don't have proof of ownership, they'll probably need a stat dec from you to go further.
They used to have a direct email address, but this is their contact page:
https://www.ford.com.au/contact-usThe CRC mailing address is near the bottom.
Cheers
Jamie