Rude is not the word for these guys.  i just called back to complain, man identified himself as the owner.  He swore, called me an idiot.  Would not listen, just started yelling at me.  People who are defensive, usually have something to hide, yes?

Caller explained that they collect uncollected debt from businesses. I politely stopped him and told him that our company doesn't have uncollected debt. He proceeded to say, "Don't you know lying is a sin?" I asked if he was calling me a liar, he said "yes, you are a liar! I explained to him that's not a very professional way to try to solicit business. He continued to make additional rude comments. I asked to be put on do not call, and never call me again. Of course they called back again and I blocked their number.

What they do is illegal! Personal threats? GET A REAL JOB

They collected my money and now they will not pay they are indeed a criminal outfit they need to be dealt with on an equal level