FNB doesn't care about customers and they treat us like *********!!

I had to FNB Bank city for Tania to actually give me a response. When I got there they called and she still didn't give a clear answer on what was actually holding my money. Then 30min later she sends me a letter that I need to take back to Sars saying that Sars disputed my funds and they will send back to Sars. I then requested for the lady that assisting me to call Tania again and find out when will the money reflect back to Sars she said in 24hr. This is now 24hrs later and the money is still lying in the FNB account still not reversed to Sars. I am not sure what is happening with FNB but this is now pathetic service. If I did not go to the bank city I would still be wondering what is wrong. They started by saying that the first query will be sorted out in 48 hrs and 48hrs turned to a whole week and days on top. Now my money is disputed by Sars and is supposed to be paid back to Sars in 24hr and 24hrs is long gone and it's still with them! What am I supposed to do now? Who must I complain yo now?? To them we are just a number and they do not value our business. I will never recommend them. I just need the funds transfered back to Sars so that I can clear what FNB has thought its ***** as they said!!! They don't even deserve the rating if there was a zero rating I would give - 0