We have certificates. Before the customer placed an order, we showed him our regular certificates. He said it was OK and placed the order. After receiving our boat and using it in the water, he said the certificate was not OK and asked us to compensate and pay him. He let us help him buy products that we don’t sell for free.If we can do that, settle the certificate matter.He applied for a complaint in the alibaba , we uploaded all the evidence, and the Alibaba platform determined that we were not responsible.