You can track your order in real-time using the order number via the Order Tracking button.
You can also check the overall order status on My Page.

Yes, both domestic and international shipping costs are included.

Import duties and taxes may be charged additionally by the destination country.

Option changes are not allowed.
If you want to make changes, please cancel your order and place a new one.

You can receive a full refund immediately after purchase.
However, if the seller has already started processing the order, whether cancellation is possible depends on the seller's policy. If the seller refuses, cancellation may not be possible.
Additionally, cancellations due to a change of mind may incur a per-item or fixed processing fee.

Refunds will be processed within 7–14 business days after the cancellation is completed.
The time it takes for the refund to appear may vary depending on your credit card company.