if any of the delivered articles show material defects, transport damage or the wrong articles have been delivered, please inform us within 24 hours after you have received the goods and we will immediately exchange or refund all goods. damaged goods will be replaced whenever possible, if however we are unable to replace them they will be fully reimbursed.we provide refund for any unsatisfactory quality if product is sent back in 3 days after receiving the goods with customer's own shipping cost.for our regular buyers,we also provide free replacement,free improvement,or credits for any unsatisfactory quality or product damage. for more information please look at http://www.oilpaintingsxm.com