Yes, it's safe. First bring my ID card to the local mobile business hall, then go to the business acceptance window and show my ID card, indicating that the business needs to be cancelled. Then the staff will verify the ID card and package information, mainly to see if the package information is still within the agreement period. If it is within the term of the agreement, it is impossible to cancel the business. If the agreement period has expired, the contract can be terminated normally. This industry is safe.