Been calling lots of travel agency in Sydney, all quoted AUD$330 or something.
Just did some google research and this one cost only $312 with free express post (minimum ordering $650) and free travel guide.
seems a legitimate company with the review below:
https://www.ekomi.co.uk/review-japan-rail-pass.html
if you prefer local company and spend less than $650 you can purchase from website below
https://www.sachitours.com.au/Japan_Rail_Pass.html
same cost as above with free delivery but without free travel guide.