Why can't I cancel the message?

The possible reasons why SMS can't cancel the service are:

1. The system may be busy, so it is recommended to try again later.

2. Your subscription has been merged and cannot be cancelled.

There is a contract in your package, and the contract period is long, so you can't cancel it during the contract period.

4. There is a problem with your SMS platform, which prevents you from canceling the SMS service.

5. You have already participated in the activity, and canceling the activity will affect you and other users. I suggest you contact the operator's customer service for consultation.

If the above suggestions can't solve your problem, I suggest you consult the customer service or related business departments of local operators.