public function setCreditPointsForInviter()
    {
        $blSet = false;
        $iPoints = \OxidEsales\Eshop\Core\Registry::getConfig()->getConfigParam('dPointsForInvitation');
        if ($iPoints) {
            $iNewPoints = $this->oxuser__oxpoints->value + $iPoints;
            $this->oxuser__oxpoints = new Field($iNewPoints, Field::T_RAW);
            $blSet = $this->save();
        }

        return $blSet;
    }