How to cancel 30 yuan's 500-minute voice package?

The situation of various voice packet services is different. If you unsubscribe from the voice package service in the combined package, you need to change the package to cancel the voice package service. You can log in to the online business hall/homepage and click self-service > business handling > package handling > 4G package, and select the package required for 4G package to make changes. Local and municipal policies are different. The actual situation is subject to the policy of Unicom to which the number belongs. For details, please also consult Unicom's manual customer service.

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You may also worry:

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4G primary and secondary cards:/034 RV;