Why is there a change fee when I'm adding new products to my Itinerary?

When you request for changes to be made to your existing Itinerary, we need to contact our suppliers to make the necessary changes in order to accommodate your request. Changes made will incur a fee of eighty-five dollars ($85) to cover costs charged by third-party vendors. The Handling Fee must be received before new documents are issued. If the change request is made within 24 hours of booking, the change will incur a fee of twenty-five dollars ($25) instead of eighty-five dollars ($85).