Why does Unicom send a text message to open a red diamond?

You can log in to Tencent Recharge Center (/index.shtml) to find the service to be opened on the monthly service opening page, select the mobile phone opening method, enter the mobile phone number and follow the prompts, and the related SMS description will be displayed. If the region does not support the use of Unicom mobile phones to open related services, it can only choose other payment methods.