Returns: If you are not completely satisfied with anything purchased from WPS, you may return it in salable condition within 90 days of the invoice date (unless otherwise specified in the product description), and we will issue a credit or refund (if requested) for the cost of the materials returned (NOTE: We cannot accept incomplete packages for return.) Before returning any materials, please write or call our Customer Service Department for a return authorization number. Shipping and handling chargers are not refundable.