If any of the details of your move change, or if you decide on taking another route to facilitate your move, it is possible to reschedule your container delivery or cancel it altogether.
Keep in mind, though that the cancellation policy may include fees that will need to be paid before you can settle things.
Rescheduling may also be costly, so review the information given to you by your agency to determine what to expect when making any changes related to your container.