Not credible. Only through customer service, but these customers charge a service fee of 1000 yuan. They accept 200 yuan in your hands, and the platform only accepts 800 yuan. The customer service said that there was no refund, so it was easy to get a refund. The key point is that 28 yuan can't return the app materials they sent, and they have to pay again. It is not easy for 28 yuan to write information directly. They will send you all kinds of platforms that can borrow money one by one, disgusting.