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Shipping & Return Policy

General Information

Any access or use of C2H4® signifies your consent to the following policies, terms and conditions. Prior to taking any legal action or raising any external dispute, please contact us at C2H4® directly and notify us of the nature of your issue with the view of reaching a mutually agreeable solution.

Payments and Charges

We accept all major credit cards (American Express, Visa and MasterCard) in addition to PayPal, WeChat Pay, and Alipay. Please note that registration is not required in order to place an order through PayPal Express Checkout. Additionally, note that Apple Pay may be deactivated for particular product releases.

When an order is placed on and payment is confirmed, you will receive an email confirming the order and the billing details. Order acceptance occurs when the funds have been received and the product(s) have been dispatched to you.

C2H4® reserves the right to amend prices on the website. Despite our endeavor to maintain accurate and correct pricing on the website, there may be mistakes from time to time. If there is a mistake, you will be notified by email before your order is dispatched to you.

Shipping costs are not included in the prices of our products. Shipping costs are determined by the requested shipping address, shipping method and the value of your order. In some cases, due to the size or weight of particular item(s) in an order, additional shipping charges may apply. In these circumstances, customers will be notified via email and asked to pay additional shipping and handling charges.

To request a modification or cancellation to your order, please email: as soon as possible. For all other cancellation requests, keep in mind that our business hours are 11AM – 7PM (PST) Monday – Friday

Once an order is submitted, C2H4® is not responsible for ensuring that it can be modified or cancelled prior to shipment.

Returns and Exchanges

C2H4® do not accept any returns or exchanges at this moment. 

If there's any quality issue with the product, please contact us via email and we will solve it with you. 

Price Adjustments And Price Matching

We are unable to provide price adjustments to reflect current discounts or promotions. Time-limited promotions cannot be applied retroactively. Additionally, while we strive to offer competitive pricing, we do not price match other retailers.

Shipping Information

For the time being (2024), our warehouse is located in Shanghai, China.

Orders are shipped Delivery Duty Unpaid (DDU) globally but you may be charged additional customs fees upon receipt due to your country. We have no control over if or how much you will be charged for these fees, and we do not accept responsibility for any additional charges the destination country may impose on you.

Although we try our best to ensure packages are delivered in a timely manner, please allow 1-3 business days for order processing and verification, and an additional 3-7 business days for delivery depend on destination.

We also have no control over international customs delays. By placing an order with us, you accept the risk that your package may be delayed during shipment for these reasons.


Lost or Damaged Items

You understand and agree that C2H4® shall not be liable for any direct or indirect damage done by any of the services we provide. C2H4® also does not assume any responsibility for lost packages once we have shipped your order to the requested address. All items are purchased at your own risk. Any issues related to lost packages or damage caused from shipping are to be taken up by you with the shipping company directly. C2H4® will provide you with the tracking number and contact information for the shipping company as needed. Once this information is provided to you, it is your responsibility as the customer to contact and deal with the shipping company.

Returned to Sender and Unclaimed Packages

In the event that an order is returned to us marked as “Return to Sender,” “Unclaimed” or “Refused,” the customer will be contacted immediately and a postage fee will be applied for the cost of re-shipping. If the customer decides they no longer want to proceed with the order, C2H4® may provide the option for store credit or exchange for the order value less the original shipping costs and any charges incurred to accept the returned package. If the customer cannot be reached, C2H4® reserves the right to return the order, restock the item(s) and provide a store credit for the order value less the original shipping cost and any charges incurred to accept the returned package.

Where returned parcels contain discounted items or items that have been in the postal system for so long that they are no longer sellable, and the customer cannot be reached or does not wish to pay re-shipping costs, C2H4® reserves the right to consider these orders abandoned without providing a refund or store credit.

Note that C2H4® is not responsible for the safe retrieval of returned to sender, refused or unclaimed packages.

Change of Address

If a customer asks for a package to be shipped to an address other than the one registered to the credit card used for an order, C2H4® may request additional information to verify the legitimacy of the order. If these details are not provided, C2H4® reserves the right to only ship to the billing address. Please note that if an order has already been packed and handed over to our shipping team, C2H4® is not responsible for ensuring any modifications to the shipping address. We also are unable to re-route a parcel once it has been shipped.

Cookies and Related Technologies

C2H4® uses cookies, tracking pixels and related technologies. Cookies are small data files that are stored on your device to aid in tracking use of the website and to improve user experience.

Your browser can be set to refuse cookies or delete them after they have been stored by referring to your browser’s help section for instructions. C2H4® will not be held responsible for any function that may not operate after you delete cookies, or any damages (pecuniary or otherwise) arising from those functions not operating or having reduced functionality.


For all orders, C2H4® provides the option of checking out with PayPal, the most trusted internet payment processing company. When checking out with your PayPal account or through PayPal Express Checkout, all personal and credit card information is transmitted through PayPal’s secure connection.

Orders placed with a credit card without the use of PayPal are processed through Shopify Payments. As a payment processor, Shopify meets all 6 requirements of PCI compliance (Payment Card Industry Data Security Standard), and transactions processed through Shopify Payments benefit from increased controls around credit card data and reduced risk of credit card fraud.

If you have questions regarding these policies, terms and conditions, please contact us anytime.