Why was my account is locked because of fraud activity due to network offline?

Call customer support.

I called customer service, fraud dept. And I even called sales department.  I got the runaround for 2.5 hrs and the guy at the end said " just check back tomorrow, there isn't anything I can do.".

I'm not understanding how and why in getting blamed for something idk how to control. Apparently my phone was on another carriers towers and that's why I got locked out..  I didn't get a notification or a courtesy call. I didnt even know it was possible but apparently I'm commiting fraud? 🙄🙄

You must be in a rural area. No, it’s not fraud, it’s called off network usage and there is a limit on how much off network usage is allowed.