public function getReturned()
    {
        $ret = $this->_returnData;

        // noone needs the responseFingerprintOrder and responseFingerprint in the shop.
        if (array_key_exists('responseFingerprintOrder', $ret)) {
            unset( $ret['responseFingerprintOrder'] );
        }

        if (array_key_exists('responseFingerprint', $ret)) {
            unset( $ret['responseFingerprint'] );
        }

        return $ret;
    }