Cancellation

Hi I have a problem I need help SS Legal Cover their egencies **** to me saying I qualify for a Shoprite Voucher if I am a member of Capitec Bank then they asked for my bank card and they scanned it took all my details and they register me into their cover

Without me knowing then later on I received a message saying I am a member to them I need them to cancel that cover I don't need it because what they did is *****. My numbers is ***