You may send your request to our customer hotline at (852) 2770 3298 or email marketing@artalcosmetic.com or by post to our Marketing Department at 19/F., Wang Fai Industrial Building, 29 Luk Hop Street, San Po Kong, Kowloon, Hong Kong together with your registered name, telephone number and e-mail address to stop or start (if you have previously unsubscribed from receiving such) receiving the above.