How to open the yellow diamond on Unicom mobile phone

At present, only some cities support Unicom's mobile phone to open Tencent business. If you need to handle Tencent-related business, you can directly log in to Tencent official website to search for the business that needs to be opened, and follow the system prompts to handle Tencent business. If you support the use of mobile phone bills, you can use them directly. If they are not supported, you can refer to other methods. Such as prepaid cards and bank cards. "