Who should I sue?

Because the activity is organized by the following units: the Children Development Research Center of China Care for the Next Generation Working Committee; Jtv Family Children's Channel, Jiangxi Music Broadcasting, Jiangxi Radio and Television Art Kindergarten, Jiangxi Radio and Television Early Education Center, Good Boy Professional Children's Photography, Canghai Bookstore; Organized by Beijing Quan Wei Food Co., Ltd. and Jiangxi Fiona Fang Communication Advertising Co., Ltd., you didn't enjoy fair treatment, which is the responsibility of the organizers, so you can directly take them to court together.

As for the SMS platforms provided by Tencent Wireless and Beijing Yingke Bicheng Company for this event, whether the information transmission and statistics are correct is a problem between the organizers and these two companies, so it is not necessary to consider them.