Description copy/pasted from Titanfall deal https://www.ozbargain.com.au/node/136759
If you want a copy of this game then you can get it cheap from Origin itself via the Mexican store. This technique will make it $18.99USD for the regular edition or $21.99USD for the Deluxe Edition which includes 150,000 in-game coins and an accessories pack.
Step 1: Open Firefox or Chrome
Step 2: Get the Hola (VPN extention) Addon
Step 3: Go to the Origin website as per normal and log in
Step 4: Switch the region of the Hola addon to Mexico and the Origin website should change to the Mexican one automatically and you will still be logged in to Origin.
Step 5: Add Plants vs. Zombies™ Garden Warfare which should be $21.99USD for the Deluxe or $18.99USD for regular
Step 6: Follow the prompts and Proceed to checkout and pay either via Paypal or Credit Card
TIPS: Use Google Translate if you have trouble navigating. Some users have reported disabling Hola before final payment helps with people getting stuck.
There is no fake addresses needed. You can still enter your Aussie location and still pay with Pesos.