> Usually only if you paid with a credit card, so there’s a record you made the purchase no?
No. Usually, if you can prove that you made the purchase at the store, by any acceptable means, they will refund you (for credit card purchases, usually exclusively to the card used for the purchase).
If you can’t, but they let you return anyway, they’ll typically give you store credit (if they don’t issue gift cards) or a gift card, so that the “money” you get ultimately is going to be spent at the store (or not at all.)