To activate the Children’s Song Duoduo Enjoy Ten Yuan Pack, you need to activate it through the Children’s Song Duoduo APP client (Android, ios). To unsubscribe from the 10-yuan package of Children’s Songs Duoduo, you need to unsubscribe through Telecom’s handheld business hall or Telecom’s manual customer service. You can also open a portal in the software and click directly to unsubscribe. Customer service 33 will answer your questions. There are all kinds of products in the data supermarket. Data packages, meal packages, voice packages, and holiday data packages can be freely selected according to your needs. You can directly apply for the "data supermarket" by replying to the keyword, which is convenient and fast.