Rapid ***** transactions on my FNB account nothing been done by FNB

I reported flaud on my account last week Friday of R644 with a reference that I don't know FNB cancelled my card they reversed the payment without telling me who did a purchase using my details,I received a new card a day before yesterday to my surprise the same purchase was done on my card by the same people but FNB has done nothing about it they never called me they never blocked those people from doing further purchases from my account, when I called them this morning am being put from pillar to post I spoke to one of their consultant by the name of Vonani Mashimbyi the guy was very rude to me then he transferred me to ***** department I spoke to Kevin Smith he was also not friendly at all he put me on hold until I drop the line he never even bother to call me back,FNB service has been very very bad to me am even going to cancel their account I don't want anything that has to do with them because I feel like they are useless to me as a client I'll rather go to another bank.