How to cancel Unicom's prepaid phone bill SMS 12 months?

The ways to cancel Unicom prepaid1February SMS are as follows:

1. Call customer service 100 10 to cancel customer service operation.

2. Send any Chinese short message to 100 10, and the system will reply to the short message to prompt you to handle five single businesses, then send the number "5", and then send the number "5 12" according to the process, and the system will prompt you to handle and cancel the short message package again, and then send the number "5 12".

Please note that the above method may require you to provide relevant information to complete the cancellation operation. If you encounter any problems during the operation, please contact Unicom or related service providers for help.