Hangzhou bad information collection and mediation platform. Hangzhou Chengxinyun Mediation Center is a Hangzhou platform jointly established by the National Credit Management Center and a third-party credit reporting company. It is used to collect and mediate bad information and has provided services to tens of thousands of customers. The cooperation in Xihu District includes Tianyancha app and Soubao app. We have provided good collection and mediation services to tens of thousands of customers.