We gurranty the failure rate for disposable vapes of each orders will be under 0.2%, however, we responsible for all defective returns. Faulty Goods The warranty of our products is 6-12 months, during the warranty time of the product,We will refund or replace faulty goods you receive include free shipping. Please note: We will only refund or exchange faulty goods that are due to a manufactural defect. We will not refund or exchange goods that have been used and are found to be in proper working condition or where damage has been caused due to misuse. Delayed/Lost Parcels. We will refund or replace any order that is lost by our forwarder. Any refund or replacement will be after the 30 days grace period stipulated by Forwarders and will be subject to full investigation by ourselves.