Can the mobile phone cancel Monternet service to stop automatic charging? Why can't I receive the mobile phone verification code after I log out?

My mobile phone is also a cottage phone, and the experience of buying it for tens of dollars is like this: there are three charging methods for cottage phones, 1 charging online (which will also automatically charge online). If GPRS is cancelled, the power can be cut off, and some bundled GPRS cannot be cancelled but can only be replaced. 2 SMS menu fee, just delete the last few digits of the SMS center number, and don't have to close all SMS. You can't receive the verification code of the mobile company system because you shut down all the SMS services, and you can't send and receive any SMS in the future, even the SMS charged by the system, so you can stop charging by secretly sending SMS, and you also pay the price of not sending and receiving any SMS. 3 Once the menu fee of the voice station is met (part of it is mixed with the SMS menu), the number starting with 12590 will be dialed automatically if the mobile card is used, and the number starting with 10 159 will be dialed automatically if the Unicom card is used. Hang up as soon as you touch it (some cottage phones are not allowed to hang up, just quickly buckle the battery). Through your complaint, I think you have cut off the first two, and you should also pay attention to the third charging trap. This mobile phone can only be used first. When you buy a new mobile phone in the future, you must buy a mobile phone without charging entertainment menu and charging trap.