For some users, POLi is not activated as your account has not been verified. 

We undertake instant verification with Trulioo Information services. If they are unable to get a verification match that meets the required standard, the verification moves into manual processing (which takes 1-2 business days).  

If you make a transfer to your AUD wallet(Powered by Macquarie) while your account is still pending you can move that over to the US or use POLi once your verification is complete.