Capitec logged into my account without my authorization

Our identity and our funds aren't save in capitec. I stopped my card July then 30 August I saw a pop up notification on my screen saying that an capitec consultant wants to login into my account. I called them today 01 September they say someone wants to do a reverse on my account. I asked what reverse while I have not being doing any transactions for a month. I regret banking with you. I then downloaded the app and locked in into my account i saw a notification saying " thank you for calling our contact centre security questions were passed and your account has been accessed by an agent to assist with your call" Note it seems this call was made on the 30th of August and I never called them that's what I told them.