[SupremumLimit]

Aside from merchant account setup, last time I looked (4 years ago), Payment Express worked out to be really expensive when charging in USD. I think it was in part due to merchant account/currency conversion charges by the bank. It was significantly more expensive than Paypal. I don't know if the situation has changed since then.

[jbardnz]

I know that the only bank that allows international currency transactions is BNZ so they are likely fairly expensive seen as they have an monopoly on it.

[veb]

Technically (for those who don't know) they allow multiple currency transactions from one/single account. So you may have 1,000 NZD but it's made out of USD, PHP, AUD etc

[HelpCenter]

Where would you be located? I might have a possible solution for you.