I know the current Coles mobile deal gives you overseas calls to 18 countries and both (Coles mobile and Catch connect) run on the Optus network. But it is still a ripper of a deal though. I believe you can save 10% more through unidays or studentlink, if you are a member + 3.5% cash rewards on top makes it a good bargain.
Buy it, use it, repeat it - harder better faster stronger
more productive, comfortable, not drinking too much