- Nells Nelson offers our customers the option to return within 14 days of purchase. Please contact firstname.lastname@example.org to receive your instantaneous electronic shipping label and tracking number. Drop off the package at any USPS location. The packaging must be intact and the product must be unused with all tags attached. Any Nells Nelson product that is delivered defective may be available for a full refund or replacement if the product is available. Nells Nelson does not accept any worn or damaged products. For exchanges, customers will be granted an online gift card equal to the amount of item(s) returned. A shipping label will be generated upon request of a return or exchange. The online store credit is not transferable.