public function getUserPayments($sOXID = null)
    {
        if ($this->_oPayments === null) {
            if (!$sOXID) {
                $sOXID = $this->getId();
            }

            $sSelect = 'select * from oxuserpayments where oxuserid = ' . \OxidEsales\Eshop\Core\DatabaseProvider::getDb()->quote($sOXID) . ' ';

            $this->_oPayments = oxNew(\OxidEsales\Eshop\Core\Model\ListModel::class);
            $this->_oPayments->init('oxUserPayment');
            $this->_oPayments->selectString($sSelect);
        }

        return $this->_oPayments;
    }