When shopping on Walmart buyers can make a purchase as a guest without creating a Walmart account. Without an account, the same buyers cannot log in and initiate a return. Guests have two options for making returns.
Option one (recommended)
The buyer can go to https://www.walmart.com/account/trackorder and enter their email address and the last 6 digits of the order number.
Then the order details will be shown with the option to start a return online. Depending on the item, the customer may see the option to return the item by mail or return the item to a physical Walmart store.
You can contact Walmart customer support and request a return on the buyer’s behalf.
Then Walmart will initiate the process and send a return label to the buyer.