How does China Unicom activate (cancel) a data plan via SMS?

Based on the information you provided, if you need to apply for a data package, since different data packages have different processing methods, you can try to handle related services on the home page of the mobile business hall - data recharge or "data package". If it cannot be handled, you can contact the manual customer service at your home location to handle it, please understand.

Since different data packages have different unsubscription methods, you can try to check the information you provided in the mobile business hall - My - My data package to see if there is an option to unsubscribe the data package. You can use this Channel processing. If it cannot be handled, please contact the local customer service staff for consultation and handling. The customer service handling policy shall prevail.