All our products "with exchange" are offered to you at a lower price on the condition that you return your used part with purchase. A prepaid carrier label and a return form (RMA) will be emailed to you after you order. Please print these documents, pack your used part in a box, place the return paper inside, stick the carrier label on the outside, then drop off the package at the carrier's drop-off point. Once the item has been shipped, then your refurbished replacement will be released for shipment to you.)