FNB bad service with ***** case

I had monies **********ly taken out of my cheque account on the 18th January and reported this to FNB as the transactions were happening. This could have been resolved there and then by FNB the custodians of my bank accounts..... However I reported this on the 18th and waiting for some type of positive feedback still. I just had a call this moment finally from FNB ***** division and they are now saying that Standard bank and Nedbank where the money was transferred to did not stop these transactions even though this was reported to the respective banks within half hour of this happening. How on earth does one sort this out and why did Ned and STD bank let these payments go through? Please help and let me know who to go to so that I can get my money back