You can try the following methods to contact the seller:
1. Check whether there is any update or follow-up information through the contact information of the seller's website or other network platforms.
2. Contact the seller by phone or email, and provide relevant information such as the order number, so that the seller can check the status of the goods.
If you have paid, but haven't received the goods, you can ask the seller to provide a refund or replacement.
If the product you buy needs extra delivery fee, you can ask the seller whether it will pay for you.
Please remember to be polite and patient when communicating with the seller, and provide detailed information and explanations so that the seller can help you solve the problem.