1, call 10086, and follow the voice prompts to unsubscribe from related services; Or turn to manual service and tell the requirements;
2. Send 0000 to 10086 and reply to the number to unsubscribe; You can also send 0000 to 10086 to unsubscribe from all services;
3. Send 0000 to SP port number, same as 2.
Using this machine to operate 1 and 2 is completely free, and 3 requires normal SMS fee. It may vary slightly from place to place.