i lost my iphone in australia and i need help finding it!!

hi there,

-bought an iphone from canada..

-lost it in australia, a month ago..

-logged in to (find my iphone) and requested to be locked , send a message while it was ((offline))

-today:

-i recieved two email from find my iphone(1- your phone has been locked, 2-your message has been recieved)

-ps:

-my phone has an international sim card, does not have interent access and has a screen lock

-logged in to find my iphone after 17 hours from the e-mail, and the phone is offline, and no location was found.

i need to find my phone!!! what can i do?