Kogan are running a competition for the Super Rugby which no one will win, but every entry gets a voucher for 30 days of Kogan Mobile which is unlimited calls/texts and 4GB data.
In order to use the voucher, you will need to buy a sim for $2 and no doubt open yourself up to plenty of emails from Kogan, but it's still a pretty handy deal. Voucher expires at the end of June. Technically it's for new customers only, but who's checking?
Of course, if you were so inclined, cough cough, you could enter the comp with six email addresses, buy six sims, and boom you've got half a year of mobile connectivity for $12.
Gasp!!! We're cheapies!!! Not cheaties!!