This debt collector called and was threatening, asking me repeatedly if I intended to pay a debt I know I did not incur with an Orthodontist? I have never been to an orthodontist. I told the debt collector I needed validation of the debt and he told me " blah blah blah - whatever are you paying this or not!!!!!!!!!!!!!!! '' I told him no and that he had no authority to call and threaten me at my place of employment!