Power Map Australian Suburbs

Hi,

Not sure if this is the right spot but here goes.

I have a large amount of data that contains only Australian suburbs and state short codes eg. NSW, VIC

When I add these fields to the 'Geography and Map Level' of Power Map, some of these records are showing up at places around the world other than Australia.

This mainly occurs to WA suburbs which are showing up in Washington State, USA

Is there a way to teach Power Map the correct location for these odd occurrences?

Thanks