Can SP function of telecom mobile phone be blocked? I called 10000 and said that I can only turn off the SMS function, but should I deduct 20 yuan from my monthly SMS package?

SP business can be cancelled, but it cannot be blocked. Generally, it is ok if you don't customize SP business. If it is some free weather forecast or Pepsi, you can call 10000 and ask them to cancel it for you. If you want to turn off the SMS function, you must cancel your SMS subscription first. The cancellation will take effect this month and next month. I suggest you use up all the short messages in the short message package before turning off the short message function. In addition, if I remember correctly, the SMS function can only be closed if the host has a valid certificate to the business hall.