Sadly I had the same issue, contacted commonwealth bank and said it was not on their end and I got billed AU$1.45 6 times, (yes I was that impatient. The thread 401 said it might have been because my details were incorrect so I tried again thinking I might have hit the wrong key or inputted a slightly off date) What my bank rep said was there might be some regulations from their side because it was an overseas company which might be the problem. In the end I resorted to a website to buy game card and it worked perfectly, at the same price too. (20 euros for 60 days)

Now I just hope all those pending 1.45 does not come through, or even worse the actual subscription later on resulting in me subscribing for 2 years or I'll be extremely mad. I'm willing to put up with this crap because SE has my respect from many, many years ago (From final fantasy 4..) but I sincerely wish they can be more professional in this matter. I had extremely troubling issues during the early access as well regarding region and service account.