Not sure if the Australian OS is different, but you can change your country in the settings... BUT your NNID needs to be match this setting (and here comes another one) BUT you can't change it in your current NNID's country (option is locked, you can only change regions from your selected country). So you can only make a new NNID in Europe. Best deal for you would be to make a UK account, I think they also get the best exchange rates.







