Cheaper than last deal https://www.ozbargain.com.au/node/218664
Also plus less $25 newsletter voucher
Not very sure about the AMEX deal mentioned.
Amex deal $30/$50 statement credit
Activating the offer to your amex has expired BUT if you have already activated the offer you can use as part of the deal
https://www.ozbargain.com.au/node/217148
Less $25