Unfortunately, once an order is placed on Kellsons.com, it is typically not possible to add items to that existing order. The company's system is designed to process orders efficiently, which means modifications are generally not allowed after confirmation. However, customers who wish to purchase additional items may do so by placing a new order separately.
It is always a good idea to review the current web page for all policies related to orders, including any specific guidelines regarding modifications and cancellations. If there are any uncertainties or additional questions, customers may find useful information in the frequently asked questions section or through other resources provided on the website.