Checkout is only in NZD/AUD

Hi there, I had some great help a few weeks ago, but I’ve just realised that all international (US/GBP) are going through as AUD – even though I have it set to accept those.

This confuses customers, as the ‘cart’ and ‘checkout’ show their chosen currency, but then it changes after they have paid.

I don’t want to mislead anybody, and I’ve had some emails from customers after checking out. I’m just a bit confused.