Australian Mobile top ups

If you are in Australia for any length of time or are going to be making calls, it’s worth it to get a sim card.   If you get an Optus pay as you go (they call it pre-paid there) and you run out of credit whilst you’re on the go, you can text IOU to 468 and they’ll credit you with $3.00, which they’ll take back when you next top up.  There are conditions of course but it’s good to know for emergencies.

more information here https://www.optus.com.au/shop/mobilephones/creditoptions/ioucredit

and if you have to call their customer services from your phone, be prepared for an ouch! cost.  It’s 50 cents a minute.