public function getCustomerAddressBook($website = 0)
    {
        $website = $this->storeManager->getWebsite($website);

        return $this->scopeConfig->getValue(
            \Dotdigitalgroup\Email\Helper\Config::XML_PATH_CONNECTOR_CUSTOMERS_ADDRESS_BOOK_ID,
            \Magento\Store\Model\ScopeInterface::SCOPE_WEBSITE,
            $website
        );
    }