The barcode page is for you to include with the item you are returning.
Amazon normally provides a UPS label, unless you want to return it via USPS or some other method.
Depending on the return method you choose, you may or may not get a label.
If you are returning it to a 3rd party seller, you may have to return it on your dime, then they will reimburse you.
More help here
http://www.amazon.com/gp/help/custom...deId=200572800