FNB service

Worst bank I've ever had to deal with. This is my story: Monday night last week , whiles sitting at home i got an sms notification. Whiles trying to log on to my banking app to stop my card. Another sms came through. By the time I had stopped my card, transfered balance to savings account. I had 4 transactions deducted from my account. I called ***** line immediately after. Case was logged. New card ordered as I was told I needed a new one. Today is a week since this has happened. The bank is still investigating. These transactions were clear that is is ***** because I had no OTP entered to approve. Neither can I purchase online 4 times seconds apart. I cannot use my account, it is reflecting over withdrawn. Neither have I received feedback from FNB ***** department on progress.