How does China Telecom cancel 5 yuan's monthly subscription service, CRBT?

Under the "CRBT Management" menu, delete the "Music Box" according to the voice prompts to cancel the service. 2. Log on to the CRBT website and delete the "music box" in the personal CRBT library to cancel the service. 3. Send "CK" to 1 18 100. According to the SMS reply, you can query CRBT in your personal CRBT library, and you can cancel the music box according to the prompt.