I have checked your ADSL2+ sync speed which is 17.9 Mbps for download and 1.0 Mbps for upload so as to me this best you can get for ADSL2+ based on distance from exchange.
Regarding upgrade i have noted that nbn is working on their network so you can check regularly on nbn website for update.
Your correct address is 64 Rogers parade west Everton park, for this address based on nbn service is not available yet due to nbn is working over it.
72 rogers parade west Everton park based on nbn service is already connected for that address however it is not address.
Our system has recorded 72 Rogers parade west Everton park as a your address and you haven't sent request for address change so you need to update it, I have sent previously request for call back so when you receive call that time advise help desk for it.