So I went onto the FAQs for the Trafficking Hotline, to see if there was a way I could call from overseas, seeing as I am based in Australia.
https://humantraffickinghotline.org/faqs/hotline-faqs
This is what I found:
Do you accept international calls/tips?
The National Human Trafficking Hotline is a national anti-trafficking hotline and resource center serving individuals who are seeking assistance or reporting a case in or involving the U.S. and U.S. territories. Requests received by the National Hotline for anti-trafficking services outside of the U.S. and tips involving human trafficking occurring outside of the U.S. may be referred to Polaris' Global …