yeah... more so when I cannot seem to explain myself.
That is their technique to sucker in polite people. I finally decided that if they are so rude as to try to manipulate me into listening to them etc etc, I will be so rude as to hang up on them if need be. I usually say "I am sorry I am not interested" then keep repeating "I am not interested goodbye" and hang up quickly before they can say something.
Don't you hate having to adapt to things in the world because they are getting ruder, or sneakier, or more scammy, or manipulative?