To change the shipping address on an existing order with Valuweb, it is generally advisable to act quickly. The ability to modify the shipping address often depends on the status of the order. If the order has already been processed or shipped, making changes might not be possible. However, if the order is still in processing, customers usually have the option to update the shipping information through their account on the Valuweb website, where they can find their order details. Customers should navigate to the specific order and look for an option to edit the shipping address. If this option is not available, checking the Valuweb website for the most current customer service contact information may be helpful, as they provide the latest guidance on their policies and procedures for such requests. Always ensure that the updated address is accurate to avoid any delivery issues.