I recently requested information from Kaplan (I had to in order to create an account on a job site search) and these [***] have called me probably 50 times in the last week.  I have been polite, vulgar, you name it.  They refuse to take me off their list apparently since I initially requested that before turning to insults and vulgarity, hoping that would work.  I learned my lesson.  Don't ever give out emails or phone numbers no matter what.  Or just give fake ones.