This issue manifested itself in the database a few years ago and it was the intention of the database keepers to remove the term "suburb" from the database.

At the time it caused so many problems that they temporarily put it back in.  It looks as if they have taken it out again which means that we need to look at suburbs such as "Montrose" and replicate the way they have their system set up to all other regions that currently wear the label "suburb" in the database.