Contact Us

Need help with a product or an existing order? The MARSTEN customer-support team can assist with product questions, order tracking, shipping, delivery, returns, refunds, and general order concerns.

Customer Support

Hours

  • Monday–Friday: 9:00 a.m.–6:00 p.m. Eastern Time

  • Saturday–Sunday: Closed

We generally respond within 24–48 hours on business days.

Please include your order number when contacting us about an existing purchase.

Company Information

  • Store Name: MARSTEN

  • Company Name: ZENTARA BRANDS LIMITED

  • Company Number: 78899970

Registered Address

Unit 2A, 17/F, Glenealy Tower
No. 1 Glenealy, Central
Hong Kong

MARSTEN orders are processed through our U.S. fulfillment network.

Returns require prior written authorization. Do not send a product to any address unless MARSTEN has provided the correct return instructions for your order.

For additional information, review our Frequently Asked Questions, Shipping Policy, or Return and Refund Policy.

Contact Form