I purchased a sewing machine on line with my Walmart credit card. When it arrived it didn't have an invoice in the box. It turns out the machine is too light weight for my needs. Can it easily be returned without a receipt?

Use the order confirmation sent through email that is tour receipt or copy of the charge to card you used to purchase

Im not sure get ahold of customer service

Just something for sure you need at least something it says Walmart and they will return it for for you or they will give you your money back or you can exchange it

Your credit card bill either on line or paper is your receipt. So if and when you return it just bring it with you.

Yep