expired $25 Belong Mobile Starter SIM Kit for $10 at Coles
Better than 1/2 price.
Unlimited national calls & text.
Month to month plans.
Unlimited data banking and gifting (as long as account is kept active).
Can be used to active on the $10 plan (effectively giving you 2.5 months access).
Limit 1 per customer. New customers only. Available in store only. Not available at all stores.
Double data hack: https://www.ozbargain.com.au/node/416353#comment-6587812
Use a referral below and receive $20 credit to your account.
Edit: Random referral - https://www.ozbargain.com.au/api/referral/35