@DrSayemHossain Like you, I'm an Australian trying to navigate this and the instructions are really not very user friendly! Did you manage to receive support on this? I can see this post is 2 years old and that you've now had thousands of students for your handful of courses (Yay! Great work!). Was it simple to resolve? Would you be able to explain in a reply here what to do?
Kindest regards, your fellow course creator, Caroline.