As title says. Just check the boxes of whats wrong with your part and fill in your address. 2-3 days later you will receive your replacement part. If you cannot find your serial number or have already got rid of your broken part then just leave the section which asks for the serial number blank, and it will still work. This is not a freebie as the parts are intended as replacements. Larger broken items will need to be returned upon receipt of replacements.