Ackermans Family Protection Plan

I received my Statement and noticed that I have been paying for a Family plan every month that I didn't even take out. I phoned to Enquire and was told that it was taken out at a store in September. I remember being approached by staff last year and was told that they will send me post regarding a plan and if I am interested I must complete and send back. I never received post and never accepted this. I have been paying this levy every month which is unacceptable as I did not even receive any membership forms. I want this policy to be cancelled and the levies that I have been paying to be deducted from my account. As I cant pay for something that I didn't take out and because a staff member of Ackermans was negligent with this.