Your account doesn't support EUR for transaction currency
<?xml version="1.0" encoding="UTF-8"?>
<response>
<errors type="array">
<error>Your account doesn't support EUR for transaction currency</error>
</errors>
</response>
If you receive this message, it means that the requested currency is not set as supported a currency of payment for your account.
Please contact your account manager to get a list of currencies that are enabled or can be enabled for your account.