Claims for items that were received Damaged or Defective must be made within 14 days of the invoice date. If you are not satisfied with a product you may return it within 30 days of the invoice date for replacement or a refund, minus the cost of Shipping and Certification (if applicable) . Please see your warranty for problems that occur after 30 days. When we replace an item, we also cover the cost of shipping the replacement to you. To avoid a restocking fee, returned items must be in sellable condition and include the original packaging, instructions and accessories.