Harassment by call centre

Your call centre is CONSTANTLY harassing me about taking out insurance on items i bought at STERNS.

Firstly at the store one is asked if you would like insurance

Secondly then tfg calls me and asks the same question and I say no thank you how much more clear can i be than that.

Thirdly now tfg calls me daily numerous times offering the same insurance, are your employees deaf that they can not hear the word no, or dumb that they don't understand what no means?

You had better turn this arround and make me a happy customer quick. And dont bother giving me the nonsense story of taking my number "off the system" as I was promised that twice already, it means NOTHING.