I rent an apartment, they keep calling to give me ...

I rent an apartment, they keep calling to give me a quote (automated system) i am on the DO NOT CALL list .I have asked them NUMEROUS times to take my number off their list, they have been rude EVERYTIME and still call repeatedly!! 6 calls a day is a bit much! I work graveyard hours and get woke up 3x a day. I would never do business with someone who has no respect for others!!!