Contact us by email Our online email response time is within 8~24 hours on business days, please be patient.

1. For questions about orders on our website:

2. For after-sales service:

3. For brand promotion, endorsement:


When your payment is successful, you will automatically receive an order confirmation email in the mailbox you left, containing the order number with "US".

If you still fail to receive it within 24 hours after the payment is successful, please contact for help.
Sure, your order can be cancell before the goods are dispatched. 1. If you haven't received the shipping notification, you can cancel or modify this order by contacting our customer service by email. Our customer service will help you cancel or modify the order within 24 hours after receiving your email.

2. If you have received the shipping notification, please note that we cannot cancel or modify orders anymore. Therefore, please wait for your package to arrive and you may either keep it or contact us to return to a refund.

Learn more:
Of course, but only before the order is shipped, usually within 24 hours after you get the order number, you can send a request to to change the product or shipping information, and we will help you change it immediately.


2~7 business days.

For pre-orders, please refer to the shipping date on the product page. A shipping confirmation email will be sent to your email once the order has shipped. The carrier is FedEx/UPS/DPD. Once the items arrived in our warehouse, please allow 2~7 business days for your shipment to arrive at your address. For any third-party shipping, we cannot provide any additional shipping information or documentation. Any delivery dates provided by DYU are estimates.
The order of the day will be shipped within 48 hours,we will send you a confirmation email to track the status of your order. You can use the tracking number in the email to check the shipping status at any time on . If you have not received the email with the tracking number for more than 48 hours, please contact * When you purchase the pre-order products, the actual delivery time is subject to the estimated delivery date.