You can't unsubscribe after receiving the reminder message.

The specific solutions are as follows:

1. Open your mobile phone and click "Telecom Business Hall" to log in.

2. Enter the telecom business hall software, enter the home page by default, and click "Query Processing" below.

3. In the query processing main option, click the "package" option on the left.

4. In the package, you can check the package and click "Booked Business".

5. All subscribed services can be found in subscribed services. Generally, all cancelled services are "value-added services".

6. You can cancel the fee deduction business in the value-added business. Please read carefully before canceling the business, so as not to affect the normal use.