Order Processing Time

Orders are normally processed within 2–4 business days after payment has been successfully confirmed.

During holidays, promotional periods, unusually high order volume, or other peak periods, processing may require up to 5 business days.

Processing time is separate from shipping transit time.

Estimated Delivery Time

For standard shipping to supported destinations in the United States, estimated transit time is generally 10–15 business days after dispatch.

Delivery estimates are not guaranteed arrival dates. Actual transit time may vary because of destination, carrier operations, customs procedures where applicable, weather conditions, seasonal volume, or other circumstances affecting transportation.

Shipping Costs

Available shipping methods and applicable shipping charges are calculated and displayed during checkout before payment is completed.

Customers can review the applicable shipping charge before submitting an order.

Fulfillment & Shipping Origin

Depending on inventory availability, product location, and destination, orders may be fulfilled from our facilities or designated fulfillment partners.

The physical shipping origin may therefore differ from our business registration address.

Tracking Information

Once an order has been dispatched, available tracking information will normally be provided by email or through the applicable order tracking method.

Please allow a reasonable period after shipment for tracking activity to appear in the carrier's system.

Delayed Shipments

If tracking has not updated for an extended period or your shipment appears unusually delayed, contact service@duwenauu.com and provide your order number.

We will review the available shipment information and, where appropriate, work with the carrier or fulfillment provider to determine a reasonable next step.

Lost or Missing Packages

If a shipment appears to be lost, contact us with your order number and any available tracking information.

If tracking shows “Delivered” but the parcel cannot be located, we recommend first checking your mailbox, delivery area, reception desk, household members, neighbors, and any carrier notices.

If the parcel still cannot be located, contact us so we can review the circumstances with you.

Incorrect Shipping Address

Customers are responsible for providing complete and accurate shipping information during checkout.

If you notice an address error after submitting an order, contact us promptly. Address changes cannot be guaranteed once fulfillment or shipment has started.

Multiple Shipments

An order may occasionally be divided into more than one shipment because of product location or inventory availability. Separate tracking details may be provided when this occurs.