What should I do if someone working out of town often sends text messages to harass my girlfriend?

Hello, you can download a third-party software to solve the problem. For example, Tencent Mobile Manager has two interception methods. One is to intercept any text messages sent from these numbers. It is safe for you to enter the Tencent Mobile Manager interface. Anti-harassment blocking blacklist selection is selected from the SMS list. Second, enter the Tencent Mobile Manager interface, Security Protection, Harassment Blocking, Blacklist, and other adding methods. Add interception keywords to intercept text messages through filtered keywords. Hope this helps.