How to send a text message to sign up for China Unicom membership?

If you upgrade your China Unicom number to China Unicom membership, you do not need to activate it yourself. China Unicom will automatically assess the membership level based on your phone bill. If your phone bill reaches the membership level, China Unicom will contact you to apply for China Unicom membership. For example, if you are a Shanghai 2G/3G user, you have spent 6 consecutive months. ≥96 yuan, for postpaid, agreement credit control, and quasi-prepaid users whose monthly average is >100 yuan, this is the silver card evaluation standard. The situation in each province is different. For specific number details, you can contact 10010 in the place where the number belongs.