Standard bank disputes department

I am currently having problems with standard bank when an international company took money totalling to 141000 without my authorization and when I went to standard bank they are telling me that the international laws doesn't allow them to submit the dispute on behalf of clients. But I had the same problem with FNB which they managed to get my money back whereas the lady by the name of kedibone molefe who work from the standard bank dispute department says she is not going to submit even if I can go to the ombudsman it is not going to help. So what I want to understand is that what is the difference between the two bank since from standard bank they are saying that the rules govern all banks.

So I would like to find out who can assist me in this situation since the ombudsman cannot assist me as well.