50+ phone calls offering to extend my vehicle warranty

caller fails to identify the company before asking for credit card information on an extended warranty.  I went through five levels of "approval" before reaching the closer -- but he failed.  When asked to be removed from the call list, the caller (representing Consumer Direct Warranty Services) refused to acknowledge my removal request and proceed to verbally abused me -- finally, he hung up on me.  Fortunately, I have an email from the rude individual, and have access to their network.  I've filed a complaint on the company via the do-not-call list.