Please do not hesitate to contact us if you have any questions. 

Customer service:
service@usmile.com
 
Marketing: 
marketing@usmile.com
 
Distribution:
cooperation@usmile.com
 
Our Website:
 
Please contact our customer service staff to get the address for returning your product or refunding your order.
 
Our Office in Guangzhou is:
Guangzhou Stars Pulse Co., Ltd
Rooms 2001, 2002, 2003, 2004 and 2005, No. 239, Tianhe North Road, Tianhe District, Guangzhou
(This address is not available for returning products.)
 
Our Office in Hong Kong is:
Usmile Trading (HK) Co., Limited
Room 803, Lippo Sun Plaza, 28 Canton Road, Tsim Sha Tsui, Kowloon, Hong Kong SAR
(This address is not available for returning products.)