Who do I talk to you about not receiving all of my order I had ordered groceries literally yesterday they were delivered today so more than enough time to get everything that’s needed no one asked for any substitutions But I’m still being charged

Customer service

If you used a delivery service such as door dash I would recommend contacting their customer support team before contacting Walmart otherwise Walmart customer support will surely be able to resolve this issue

Please let us know if they resolved to your satisfaction, either getting the items or refund, so I can decide if it's a good idea to use this service.

Call 1800 Walmart they have always helped me get credit for items not received in the past.