We’re here to help you when you need it! Our friendly support staff at Vivick’s customer service department is available Monday-Friday 8:30 a.m.-5:30 p.m (PST). Please don’t hesitate to give us a call at 626-839-3588. You can also send us an email at vivickusa@gmail.com with your detailed questions. Any questions will be promptly answered within 48 hours. We are also open to any feedback and suggestions and would love to hear your thoughts on our products. Thank you.