1life call centre

i think 1life is harassing me now. Everyday they call me not once but 3 or 4 times to reinstate the policy that I took and cancelled it. I have told their people that I am no longer interested and asked them to remove my details from their system and not call me again. but after a few minutes a different person will call me again saying the same thing. I am tired now and they a violating my privacy now.