Can members of Zhixing Black Diamond only buy it?

Yes, Zhixing membership is a service launched by Zhixing Travel Network for Zhixing VIP members. It has five grades: ordinary, silver, gold, platinum and black diamond. Only by purchasing, you can enjoy unlimited VIP speed to grab tickets, and you can add six beneficiaries for free, as well as 10% discount on ticket purchase and unlimited coupons for booking hotels. You can also enjoy the rights and interests of the VIP lounge at the station. This member cannot be given to others or obtained by other means. Therefore,