Various statement credits if you log into American Express and save the offers under the 'Offers & Places' tab to your card. Looks like purchases of Gift Cards for Masters will still qualify.
MASTERS
SHOPPING / Spend $125 or more, get $25 credit
Spend $125 or more on the saved Card in one or more transactions at Masters or masters.com.au, before 14 July 2014 to receive one $25 statement credit. Limited to first 5,000 Cards to save the Offer.
TARGET
SHOPPING / Spend $50 or more, get $10 credit
Spend $50 or more on the saved Card in one or more transactions at Target or at target.com.au, before 14 July 2014 to receive one $10 statement credit. Limited to first 15,000 Cards to save the Offer.
QUICKFLIX
SHOPPING / Spend $20 or more, get $5 credit
Spend $20 or more on the saved Card in one or more transactions at quickflix.com.au, before 14 July 2014 to receive one $5 statement credit. Limited to first 5,000 Cards to save the Offer.
AUSTRALIAN GEOGRAPHIC
SHOPPING / Spend $60 or more, get $10 credit
Spend $60 or more on the saved Card in one or more transactions at Australian Geographic or australiangeographic.com.au, before 14 July 2014 to receive one $10 statement credit. Limited to first 5,000 Cards to save the Offer.
SYD AIRPORT TAX AND DUTY FREE
SHOPPING / Spend $100 or more, get $30 credit
Register by saving the offer to Card and spend $100 or more at Sydney Airport Tax and Duty Free in-store before 31/8/14 to receive one $30 statement credit. Limited to the first 10,000 Cards to register.
I get target spend $50 get $10 credit. Coles gift voucher here I come!
Use coupon "grocery10" when checking out via masters online. SAVE25 for 25% off orders over $150 might also work but I think you need to enter everyday rewards card or something.