Group 1 - The article provides a step-by-step guide for individuals to upgrade their real-name authentication level on the electronic tax bureau platform in order to proceed with tax cancellation procedures [2][3][9] - Users must first log in to the electronic tax bureau, check their current real-name authentication level, and if it is below level four, they need to initiate the upgrade process [9] - The upgrade process involves using the electronic tax bureau app to complete a facial recognition verification, which, once passed, will automatically update the user's real-name authentication level to four [3][9] Group 2 - The article emphasizes the importance of having a real-name authentication level of at least four to perform certain tax-related operations, such as tax cancellation [2][9] - It outlines the specific steps required to log in, check the current level, and initiate the upgrade, ensuring clarity for users who may be unfamiliar with the process [2][3][9] - The article serves as a practical guide for individuals seeking to navigate the electronic tax bureau's requirements efficiently [2][3][9]