How to cancel 12530 CRBT service?

1 0,0000 to12530; 2. Log in to CRBT website (in Guangdong), and then cancel in "CRBT- Personal Management". 3. Call the self-help hotline 12530, and then press the prompt to cancel (generally press 9 after connecting) or call 12580 to cancel manually, but both methods are charged and generally not recommended; 4. Call 10086. If the local China Mobile Service Commissioner accepts it, it will be cancelled manually.