Called my work number but didn't leave a message

I called the number back and it was a sales call and I told them to take my work number off of their calling list and he lied and said our number was given to them directly, I told him to take it off anyway and the guy was still trying to sell me something, urggggggggggggggg.

I would like to report this company!!!!!!!!
This was a sales call to my job, please stop them from making random sales calls like this, it didn't sound like he was going to take my number off his calling list when I requested it, he denied that they had a calling list.

These guys are headhunters for private banks and private firms. They don't actually sell anything. My boss is familiar with them and said they are the real deal. Their website is http://opus-search.com/

Oh wait sorry ignore my post above. The number I'm talking about was 4244007505. Sorry!