The mobile phone card is broken, and the verification code cannot be received. It's inconvenient to go to the business hall. How to cancel the mobile phone number? thank

The mobile phone card is broken, and the verification code cannot be received. It's inconvenient to go to the business hall. How to cancel your mobile phone number depends on whether you have been authenticated by your real name. Which operator does your card belong to? If you are my real-name authentication card and your card is Unicom's, then you can cancel it directly in the mobile phone business hall. But if your card is a telecom or mobile phone card, it must be mine. Or the agent can also take the ID card to the business hall for cancellation.