function AddCurrencyCredit($merchantAutobillId)
{
$autoBill = new AutoBill();
$autoBill->setMerchantAutoBillId($merchantAutobillId);
//note field can be empty - it doesn't get used.
//use description and/or reason fields in the Credit object instead
$curAmount = new CurrencyAmount();
$curAmount->setCurrency('USD');
$curAmount->setAmount(25);
$curAmount->setDescription("25 Dollar Currency Credit");
$curAmount->setReason("Credit for July");
$cr = new Credit();
$cr->setCurrencyAmounts(array($curAmount));
$response = $autoBill->grantCredit($cr, '');
logCall($response, 'AutoBill::GrantCredit', '25 Currency Credit');
}
