This is probably a fraud gang. If you ignore it, install Tencent mobile phone housekeeper to intercept it. Open Tencent Mobile Manager-Security Protection-Harassment Interception and blacklist all the called numbers. This will prevent these numbers from harassing users by calling again. Finally, the ability to "report" intercepted harassing calls can improve the accuracy of interception by Tencent mobile phone housekeeper and make "intelligent interception" more reliable. Thank you for your adoption.