Received a call from them this morning.  It was a local number so I answered.  They asked to speak to whoever was in charge of my cleaning service.  I informed them I was a 1-person business and did not require a cleaning service and hung up.  They immediately called again - which I did not answer.  That lead me to believe that they may have been scamming.

Same phone call as above. We have 4 total people at our company, so this is obviously a garbage call. I told them we had it taken care of and hung up. They called back within seconds, and repeats the question, and I inquired as to their identity. He said, "I'll call back in six months. Who should I ask for?" I replied: "You shouldn't. Please remove us from your list." He responded with "I'll call back." and hung up. Pretty obviously not a legit business...

Call ID shows the phone number but "unknown" as the name.

Very rude person called about cleaning for our business.  After three times of saying I wasn't interested he kept asking if we were under contract to which I replied it didn't matter because I wasn't interested.  He very rudely replied how funny it was that some people couldn't answer questions...I then told he I was even less interested with an unprofessional business...He hung up.

Thought this was a robo call so I hung up.  He called back immediately and asked who was in charge of my cleaning services.  I hung up again.  If this guys calls back I'm gonna flip.  Is it illegal to threaten someone's life over the phone?

This same thing happened to me just now!  The caller was very rude and harassing.
He called 3 times after I repeatedly told him to never call here again.