public function getPaymentBeingRefunded()
    {
        if (is_null($this->paymentBeingRefunded)) {
            $this->paymentBeingRefunded = oxNew(\OxidEsales\PayPalModule\Model\OrderPayment::class);
            $this->paymentBeingRefunded->loadByTransactionId($this->getTransactionId());
        }

        return $this->paymentBeingRefunded;
    }