please stop contacting me

I sent a review for 1life a few months ago. I was complaining about their calls ,SMS and emails. These people they call me every day, not once. Sometime I receive calls from 3 different people per day. I told them that I am not interested in their product. I even asked them to remove my details on their system but still they contacted me. I feel like their are violating my privacy by sharing my information with other people without my consent. please help to get these people not to contact me again.