I returned with receipt banana boat n wet wipes at shop rite because I did not get the checkout coupon. Not only dud they give me the before coupon price back they gave it back in cash
I returned zertec to target because 1 of the 4 I bought had no coupon attached and I was positive I gave 1 coupon per zertec the zertec rang up 54¢ not $4.54... I ended up returning it without a receipt and got a store credit gift card.
In my experience it varies greatly from store to store what they will do for you. In my experience it doesn't hurt to try, if the return isn't working in your favor just tell them to forget it, or explain why your returning it and see if they can do it without a receipt. (target, walmart, kmart, kohls,etc have a yearly limit, 365 days not jan1st)