R.D.J. Specialties

Sales person is very rude, calling me a __________ because I do not let her speak to someone else, calls numerous times a day, every day.
I was asked to be put on the company's Do Not Call List in May, 2014. Sales lady started calling again yesterday. Very rude, I have been called a _______, rude as*, etc by at least 3 sales people in the company in the 4 years I have worked for my current employer. The previous secretary has called the company numerous times to complain also. The calls stop for 2 weeks to a few months then a new sales person calls and the harrassment continues. We are not allowed to purchase things from any company who is not state approved since we are a [redacted] State agency. I have explained that to this company over and over and I am still getting the same harrassing phone calles every day.