After-sales commitment: all goods in our store will be replaced within 90 days with a one-year warranty. If you have any questions about the products, you can directly contact customer service to ask for the return address. After we receive them, please contact our customer service online to provide your return courier number so that we can check the goods signed for. After verifying that there is no problem, we will help you deal with the machine sent to you as soon as possible.