Family Cover Policy on Clothing Account

I have an account, and I had this account for years now it has a low limit of about less R1600.I pay my account every month, but something is been happening in my account lately ,a deduction I do not know about for family cover with an amount of R109 and I only pay R155 for this account, I never sign up for this cover and I want it off my account immediately and with the refund of all the premiums because I never sign up on it.Another thing that happened my number was changed without my consent to the alternative number.My account number ***.And it's now lockdown and such thing is happening in my account.I tried to talk them via email the only thing they told and their response was to tell my about the options for payments ignoring my complaignt and refer me to departments I dnt know about.I want my money reversed so that I can continue pay my in full.