Hook::exec('actionCustomerAccountAdd', array(
    '_POST' => $_POST,
    'newCustomer' => $customer
));

$cart_rule = new CartRule();
foreach(Language::getLanguages() as $language)
    $cart_rule->name[$language['id_lang']] = 'Купон на бесплатную доставку за регистрацию';
$cart_rule->id_customer = (int)$this->context->cookie->id_customer;
$cart_rule->date_from = date('Y-m-d');
$cart_rule->date_to = date('Y-m-d', strtotime('+10 day'));
$cart_rule->quantity = 1;
$cart_rule->quantity_per_user = 1;
$cart_rule->priority = 1;
$cart_rule->partial_use = 1;
$cart_rule->free_shipping = 1;
$cart_rule->highlight = 1;
$cart_rule->add();