Its true they are authentic but as they said they are not authorised dealer and cannot claim warranty if anything goes wrong.
If your not in a hurry you can order at v-moda's website.
You can call up addicted to audio http://www.addictedtoaudio.com.au/ and as for a discount. Look for george.
Addicted to audio has overnight shipping as well.
How much can you get it for from addicted to audio