CONTACT US
Need help with a product, an order, delivery, payment, return, refund, or another store-related matter?
Our customer service team is available to assist with questions relating to your shopping experience with zoustack.
Store Operator
zoustack is operated by Henan Wanshanghui Technology Co., Ltd.
Operating Company:
Henan Wanshanghui Technology Co., Ltd.
Legal Representative:
He Jianfeng
Company Type:
Limited Liability Company
Registered Address:
China, Henan Province, Zhengzhou City, Xinzheng City, Mengzhuang Town, Chenghouma Village, South Side of Yuanmeng Highway, Hengsheng Changtai Logistics Park, Comprehensive Building, 1st Floor, East Side, Room 01
Customer Service
Email Support
Email is the recommended contact method for most order-related and product-related inquiries.
For faster assistance with an existing order, please include:
- Your full name
- Order number
- Email address used during checkout
- A brief description of your question or issue
- Relevant photographs or videos where appropriate
Providing complete information can help our customer service team identify your order and review your request more efficiently.
Phone Support
+1 310-390-9543
Customer Service Hours:
9:00 AM – 6:00 PM Pacific Time
Phone availability may vary during public holidays, unusually high inquiry volume, or other operational circumstances.
For matters that require photographs, documents, tracking information, screenshots, or detailed order records, email may be more suitable.
What We Can Help With
Our customer service team can assist with matters including:
- Product information
- Product specifications
- Order confirmation
- Order status
- Order changes
- Cancellation requests
- Payment-related order questions
- Shipping information
- Tracking questions
- Delivery concerns
- Missing packages
- Missing items
- Incorrect products
- Damaged products
- Defective products
- Return requests
- Refund status
- Website questions
- Checkout issues
- Privacy-related inquiries
- Other store-related customer service matters
For an existing order, please include your order number whenever possible.
Order Changes and Cancellations
If you need to change or cancel an order, contact us as soon as possible.
We will make reasonable efforts to assist where the order has not progressed too far in fulfillment.
However, changes or cancellations may no longer be possible once an order has been:
- Processed
- Packed
- Transferred to a carrier
- Shipped
If cancellation is no longer possible, you may need to wait until delivery and request an eligible return in accordance with our Return & Refund Policy.
Shipping and Tracking Questions
For questions concerning shipping or delivery, please provide:
- Order number
- Tracking number, if available
- Full name
- Delivery address
- Brief description of the issue
Before contacting us about a package marked as delivered, please also check:
- Mailbox
- Front door
- Parcel locker
- Reception area
- Other safe delivery locations
- Household members
- Neighbors where appropriate
- Building management or concierge where applicable
You may also contact the applicable shipping carrier for additional delivery information.
Damaged, Incorrect, or Missing Orders
If your order arrives damaged, incorrect, incomplete, or appears to have another product-related issue, please contact:
Please include your order number and, where relevant:
- Clear photos of the product
- Photos of damaged areas
- Photos of product packaging
- Photos of the outer shipping package
- Shipping label
- Details of missing products or quantities
- Video where reasonably necessary
Please retain the product and packaging while the issue is being reviewed.
Do not dispose of relevant packaging unless our customer service team confirms that it is no longer required.
Returns
Please contact our customer service team before sending any product back.
Do not automatically send a return to our registered company address or to an address printed on the original shipping parcel.
The appropriate return location may depend on:
- Product
- Order
- Fulfillment arrangement
- Return reason
- Customer destination
If a return is eligible, the applicable return instructions and return address will be provided after your request is reviewed.
Please review our Return & Refund Policy for additional information.
Important Return Address Notice
The registered address of Henan Wanshanghui Technology Co., Ltd. is provided for business identification and transparency purposes.
It is not automatically the return address.
Products sent to an unauthorized or incorrect address may experience delays or may not be processed correctly.
Always contact customer service and obtain the applicable return instructions before sending any package.
Privacy Requests
For questions or requests concerning your personal information, please contact:
Where possible, use the email subject:
Privacy Request
Depending on the nature of the request, we may need to verify your identity before completing certain privacy-related requests.
Please do not send:
- Full credit or debit card numbers
- CVV or CVC security codes
- Banking passwords
- Payment-account passwords
- One-time authentication codes
- Other sensitive financial credentials
Please review our Privacy Policy for additional information about privacy rights and data handling.
Payment Questions
For questions concerning a payment associated with a zoustack order, please contact:
Please provide your order number and relevant non-sensitive transaction information.
For issues controlled directly by your bank, card issuer, or payment provider, including authorization, exchange rates, bank restrictions, or third-party fees, you may also need to contact that provider directly.
zoustack currently accepts:
- Visa
- Mastercard
- PayPal
- Apple Pay
- Google Pay
The payment methods available for your individual order will be displayed during checkout.
Response Times
We aim to review customer inquiries as efficiently as reasonably possible during our regular customer service hours.
Response times may vary depending on:
- Inquiry volume
- Weekends
- Public holidays
- Complexity of the request
- Whether additional information is required
Sending multiple messages about the same issue may not result in a faster response.
Where possible, please provide complete information in your first message.
Business Information
Store Name:
zoustack
Operating Company:
Henan Wanshanghui Technology Co., Ltd.
Legal Representative:
He Jianfeng
Company Type:
Limited Liability Company
Registered Address:
China, Henan Province, Zhengzhou City, Xinzheng City, Mengzhuang Town, Chenghouma Village, South Side of Yuanmeng Highway, Hengsheng Changtai Logistics Park, Comprehensive Building, 1st Floor, East Side, Room 01
Customer Service Email:
service@zoustack.com
Customer Service Phone:
+1 310-390-9543
Customer Service Hours:
9:00 AM – 6:00 PM Pacific Time
The registered business address above is provided for company identification and transparency and should not automatically be used as a product return address.
zoustack is operated by Henan Wanshanghui Technology Co., Ltd.