private Map<String, String> buildPayload(final User customer)
    {
        return ImmutableMap.of(
                NotificationKey.CUSTOMER_FIRSTNAME, notificationDataManager.getCustomerName(customer),
                NotificationKey.SERVICE_TEAM_EMAIL, serviceTeamContactProperties.getEmail(),
                NotificationKey.SERVICE_TEAM_PHONE_NUMBER, serviceTeamContactProperties.getPhoneNumber());
    }