TunnelBear is offering 5GB on instead of the normal 500MB when signing up through Techradar's site. I used to use this quite often before using Getflix.
New accounts only. If it isn't working for you you may have to clear your cookies/signup in incongnito mode.
Thanks, unfortunately it does not give Australia server on the free version :(
But 5Gb is a pretty good deal, matches Windscribe which I currenty use for free.