Bad service quality

The customer service personnel made a slow reply. I called them three times only for one question. Finally a business manager received me. Then I added her WeChat account and she said that if there was something wrong, I could contact her directly. After I added her WeChat account, she still gave me slow replies. And the headquarters could not supervise the WeChat content of the employees. That means the clients who were flickered into Hantec were treated indifferently by the business manager. He would answer your question at his will? The 24 customer service call always works, and the personnel’s attitude is also very good. But the attitude of the marketing staff is very cold, directly affecting my moon as a your client. Fortunately I just want to know about the platform in previous period and have not invested in. If you invest money, you can only bear their bad manners. The company allows employees to use WeChat to provide services. How does the company evaluate the customer service personnel’s service quality?