Subscribed to the music package, clicked the free trial or trial button, other reasons, etc.

1. Subscribe to the music package: After subscribing to the music package, the platform will automatically activate the full music package service for the user and charge the corresponding fees from the user's account.

2. Clicked the free trial or listening button: Some platforms provide free trial or listening services. After the trial period, if the user does not cancel the service, the subscription will be automatically renewed and the full music package service will be activated.

3. Other reasons: Misoperation of the mobile phone, use by family or friends, etc. may cause the full music package to be automatically activated. It is recommended that users pay attention to account security when using it, and check bills regularly to avoid unnecessary expenses.