Hi,
After 10 days and two e-mails I’ve got a response from SmartThings:
Thanks for reaching out, we appreciate your patience.
I looked into the situation for you, and I regret to inform you that certain SmartThings features, like adding a hub, is not yet supported in Australia. That would explain why you haven’t been able to locate an option on the application to add a WiFi/Hub device. I understand that you were migrating to a different hub, so I would recommend taking a look in the SmartThings Community to see if any of our members have found a way to successfully connect their devices in your area.
It answers the question but does not solve the problem. Hope someone knows how to work around this.
Cheers,
Ben