Once: Win back the value of purchases up to $350 at any AMP Capital Investors shopping centres
I dunno how good this is but will post it anyway.
You need to make an entry. That puts you in the draw box to get the cost of your shopping paid back to you. Max payment they will give you is $350 and each centre has about $5000 up for grabs. You'd be cheesed if you went in there and spent $10 only to have them pay you back.
"To enter, simply complete an entry form for your chance to WIN! Entry forms are available from each retailer and Customer Service Desk or the Centre Management Office located at each centre."