I've just recently Optus has an add-on, which is $20 for 10GB of data global roaming, over 14 days.
It's a lot cheaper than other options from travel sim providers.
Has anyone used this Optus for roaming - what's the quality of service like, and are their charges legit?
I've got an Optus pre-paid, so I wouldn't be incurring any call charges by accident.
https://www.optus.com.au/shop/mobile/prepaid/plans?SID=con:p…
Just a heads up, only these countries: