As far as I know, the customer service of Haixing Meituan is not pyramid selling. Meituan is a well-known Internet company, providing take-away, hotel reservation, group purchase and other services. The customer service of Haixing Meituan can refer to the customer service team of Meituan. These customer service personnel are responsible for handling users' problems and complaints and providing related services and support. MLM organizations usually aim at recruiting offline and developing members, and earn income by developing members. The duty of Meituan's customer service is to provide users with services to solve problems and meet their needs, and it does not involve recruiting offline and developing members. Therefore, it cannot be concluded that the customer service of Haixing Meituan is a pyramid scheme.