山西：电子税务局如何提升个人实名等级？操作步骤

Group 1 - The article provides a step-by-step guide for taxpayers to upgrade their real-name authentication level in the electronic tax bureau to facilitate tax-related services [1][2][4] - The first step involves logging into the electronic tax bureau as an individual and accessing the account center to check the current real-name authentication level [1] - The second step requires clicking on the "level three" option and following system prompts to perform facial recognition verification using the electronic tax bureau app to complete the upgrade [2][3]