If you are a seller, you call the shipping company and tell them that my customer has not received the shipment. Ask the shipping company to contact the shipping company and let the shipping company handle the matter. You just need to do a good job of tracking the compensation later.
If you are a buyer and you have not received the goods, first contact the seller to ask where your goods are and when you will receive them. Read the reply from the seller and then consider How to do it. Anyway, if you don’t get the goods, you definitely can’t give this money to the seller. You have to pay attention. The automatic payment time is 10 days. Try to handle this matter within 10 days. If the time is almost up, the seller hasn’t given you a processing result yet. , then you should quickly ask the seller to extend the delivery time for you, or apply for a refund.