This client wants to manage users via Tuya app, but our production didn't mention this info. He didn't find this info in our production's details, and he still placed an order without contacting us to confirm this first. And then he comes to trouble us. But we didn't lie about anything. Our product does have its special function and is favored by our customers. Finally Alibaba judged that it's not our fault. It is a shame for a person to do this for his own petty interests.