You load the AUD onto the green plastic card via the Wise app. It shows up instantly. I use my NAB debit card. Then also using the app, you use the Send Money function to your US bank account. Mine is B of A. Doing it this way it shows up instantly in B of A. If I use Send Money direct from the website on my laptop it takes a few hours depending on what time of day I do it. Then the ACH thingy goes from Pending to Completed transaction around 19:30-20:30ish my time the same day it shows up in B of A. I don't like to use it to pay my cards until if finishes processing.