Only guaranteed shipments are eligible for late delivery disputes. In some cases, carriers will refund the guaranteed portion of your shipment cost if a shipment does not arrive by the specified delivery window.
It's important to note that for non-guaranteed shipments, National LTL Partner Carriers provide estimated delivery dates, meaning the shipment may arrive on a date other than the one specified.
To learn more about each service level and price option, please refer to this article.