When we made the sample for the first time, because the sample machine was different from the bulk machine, the scraping was not very smooth. Therefore, we take the initiative to make another sample for him for free. The second sample is perfect. I told the customer that the production has been completed after the completion on 4.11, and the customer said on 4.16 that the address needs to be modified. According to the normal process, the goods will be sent directly to the address of the order. At that time, the product had already arrived in the United States. I also contacted FedEx immediately, and said that the customer needs to contact us to change the address actively. We bear the cost of changing the address and tell the customer the situation immediately. The customer ignored this message directly,