/**
* Please note, that when you wanna provide 100.25 CZK,
* you should pass here the number 10025
*
* @param string $paymentId
* @param int $amount In hundredth of currency units
* @return Message\Response
*/
public function paymentRefund($paymentId, $amount = NULL)
{
$data = ['merchantId' => $this->config->getMerchantId(), 'payId' => $paymentId, 'dttm' => $this->formatDatetime()];
if ($amount !== NULL) {
if (!is_integer($amount)) {
throw new InvalidArgumentException('Amount must be an integer. For example 100.25 must be passed as 10025.');
}
$data['amount'] = $amount;
}
return $this->processRequest(Message\Request::paymentRefund($data));
}
