August deal by Amaysim.
Pay $8 per 28 days for first 3 renewals and get 8GB per 28 days. Includes Unlimited National Talk and Text.
After 3 renewals, you still get 8GB per 28 days but plan defaults to $20 per renewal.
Not that great a deal, but looks like Amaysim is playing with giving deals on each of its various plans to understand customer choice.
Details on homepage of amaysim.