All claims must be made within 10 days of shipping date and accompanied by invoice. Please contact us for a return authorization number before shipping any goods back to us. No returns will be accepted without authorization. We will pay return shipping charges only on items mis-shipped or defective. All other returns must be shipped at the cost of the purchaser. A 20% restocking fee is charged for returns. Special Orders, books, and kiln shelves may not be returned under any circumstances. No cash refunds.