Welcome to OSM and thanks for your edits! Beware as it is addictive. :-)  Phone numbers in Australia should be added to OSM according to the following format with the country and regional code +61 x xxxx xxxx, (+61 xxx xxx xxx for mobiles) or use the phone:AU key if a 1300 or 1800 number.
For freecall numbers that work whilst overseas (ie 13 13 13) use +61 XX XX XX as per the wiki guidelines https://wiki.openstreetmap.org/wiki/Australian_Tagging_Guidelines/Australian_features .  I have just updated a recent addition that you made to OSM – Cheers
