What do they do returns?

Cash back when bought w/cash. Or put back on the credit card it was purchased with if bought on a card.

You don't need a receipt but you'll get a Wally card. If you paid cash, take it with you.

Yes

Cash if you paid cash credit card if you paid my credit card

They do returns it's better if you have the receipt

Don't understand the question.

Yes. Walmart has gotten better at returns.