hi. iI had the same problem because someone had their suburb as "Wattleglen" intead of "Wattle Glen". (forgot the space it is two words). It is in victoria and when the suburb and postcode didnt match up it defaulted back to ACT instead of VIC. Took me half an hour to figure out. So recheck the spelling of the suburb. Post code matches up and change the state back to your state form the ACT.