Not sure when deal ends, but seems to be all 7/11 stores
$30 optus prepaid sim kit for $10.
Using for my old telstra 4g modem, 30gb of data, and speeds that are faster than my home broadband
https://www.speedtest.net/result/8027789127
Cheap alternative for 4g dongle data.
Promotion valid 29/01/2019 to 25/02/2019 where advertised. Credit expiry and included value will depend on your plan. Coverage: Check at optus.com.au/coverage Compatibility: If you bring your own device, make sure it’s not locked to other networks and is compatible with the Optus network. To learn more, visit optus.com.au/compatibility. General: Limit 1 per customer per SIM. Range may vary by store. While stocks last. Valid to 25/02/19.PLEASE BE AWARE – SCAMMERS MAY FALSELY DEMAND PAYMENTS USING ITUNES OR GIFT CARDS. GOVERNMENT AGENCIES AND LEGITIMATE BUSINESSES WILL NEVER DEMAND PAYMENT USING THESE CARDS. REPORT SCAMS TO SCAMWATCH.GOV.AU. No rainchecks.
Still $9 in my local Woolies.