They did not send you 2 of the same item, they sent you the incorrect item. Does the receipt you have show this item or the correct item that you ordered and paid for? If you have a receipt showing they sent the item you ordered and charged you the amount of that item, then yes, you have to return it. If the receipt…

You absolutely should have been charged! They caught their mistake, sent you the correct item and asked for the incorrect item to be sent back. Companies make mistakes but that doesn’t give you or anyone else the right to try to keep the item for free. When a customer calls my business to say we shipped them the wrong…