Very Poor Service, Misinformation and Lack of Security Protocols

I visted few of FNB branches (including Sandtom City and Randburg CBD) regarding the unauthorized transactions made by Dollar Thrifty and asked them to block them from doing that. Instead of assisting me, they tried to sell me their online banking and App service as well as credot card. Few days after, on 18 November 2019, I asked them to cancel my cheque card to stop these unauthorized transactions. To my surprise, om 23 November 2019, I received sms noting that the Dollar Thrifty took R975.00 from my account. I visited their Northgate branch and they transferred me to their contact centre department to resolve this issue. The consultant (Dineo) asked me for the card number in order for her to assist me and I rep**** that I cancelled the card and dont remember it. She said she cannot assist me without card number and again sold me the online and App services. She said I can resolve this issue once I have their App or have card number. I downloaded their App when I got home and recovered my card number that is cancelled and when I put the card details and pin, I got tje message saying they are incorrect. This has made to question the security of my money with FNB.