US banks might lose money on the transaction, as Oz banks could a few years back when I worked in the bookshop of a Govt Agency.

In the days before we had eCommerce, we received a US check for $17USD (even tho we always asked our international customers for "Payment in Australian dollars by a cheque drawn on an Australian bank") instead of $17AUD & a $AUD was worth less than a $USD we lost out on conversion, + bank fees.

If I'd received it, I would have sent it back (less experienced colleagues processed it before I saw it), fooey to prompt customer service, if folks can't read instructions, they can wait for their goods. I'm sure they would not have accepted an Australian cheque in $AUD!

sandra