Working hours: Beijing time: Monday to Friday 9:30 a.m. to 6:30 p.m. We do not work holidays in China. If you are not satisfied with the product or service, please contact me, don't give us negative feedback, we have to give you a satisfactory solution. If you send us an email, we will reply within 48 hours on business days. Davin Technology Code of Conduct 1. Customers first, employees second; 2. Use all the time to hone your skills; 3. Express all evaluations with encouragement; 4. Because of trust, so simple; 5. Live seriously and work happily; Thank you eBay and thank you for your support We rely on our eBay reputation and customer satisfaction for success. We want to get good feedback from you and a 5-star DSR rating.