You probably don't even know who is calling if it's a different number every time. You can't sue if you don't know exactly who is calling and have plenty of evidence. And, I doubt it's an actual 'company.' It sounds more like a scammer calling, to me.
Yep, called me twice. Didn't answer the first time, figuring if it was important they would leave a message. The second call concerned me, so I stepped out of class to answer. Imagine my excitement when I realized that someone had the audacity to call me TWICE during work hours to give me an automated message about security systems.