FNB being untruthful and ****ming the **** out of me

It is 3days since my last complaint. instead of resolving it with me, an consultant just closed it. I tried calling FNB and instead I got a voicemail box. On Friday i got through and I was promised that the consultant will call me. My account is now in a - R1500. Their answer is they do not have control of when thw merchant banks the money and I think that is just bull****! If the transactions I did were reserved, why the **** did they not deduct all those transactions from the reserved ledger like they were supposed to?????? Instead they went and took the monthly charges from their " reserved ledger" because they knew doing it this *** way will make them more money. In other words " rob me". Another consultant said funds were reversed which is not. So they lying as well. I promise if this is not resolved ASAP im taking it to social media where I know I will get alot of back up from other clients who will realize they are being ****** just like me. This is *** service and I can see why alot of clients are leaving.