/**
* Refund the amount
* Need to decode last 4 digits for request.
*
* @param \Magento\Framework\DataObject|\Magento\Payment\Model\InfoInterface $payment
* @param float $amount
* @return $this
* @throws \Exception
*/
public function refund(\Magento\Payment\Model\InfoInterface $payment, $amount)
{
$last4 = $payment->getCcLast4();
$payment->setCcLast4($payment->decrypt($last4));
try {
$this->processRefund($payment, $amount);
} catch (\Exception $e) {
$payment->setCcLast4($last4);
throw $e;
}
$payment->setCcLast4($last4);
return $this;
}
