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How do Unicom 2G users cancel SMS reminders?

Select the business to be processed. If there is no online registration, you can cancel it, or you can call 100 10 and choose to cancel the manual service. Fill in the account name with your mobile phone number, and you can send a verification code to your mobile phone for registration. If there is any problem with online operation, you can log in to Unicom's online business hall.