Faliure to comply

Hi <br> <br> These guys are the most *********** in the industry. This is the 7th call I received from their agents trying to sell me something, to which I've said on numerous times that I'm not interested and further to that I do not want to be contacted again. I stated that I am on the DO NOT CALL LIST. Why is this so hard to understand??? I have requested that they remove my number on numerous occasions only to have the last agent that called me now and rudely dropped the call in my ear because I requested to speak to his supervisor. The agent told me that I didn't tell him this before but I've told 6 other agents the same thing. This is truly madness and harassment.