FNB dont care about their customers

I have been a client with FNB for years, my father in law deposited money into my account from Capitec and requested that I pay it over to him in Namibia, reason being Capitec does not do Internasional payments. I have done this many times before for him. Capitec reported the transaction as *****ulent resulting in my account being frozen. Case no *** The money was immediately reversed and my father in laws account unfrozen even though a hold is placed on the money. Me as a FNB customer need to wait 7 - 30 days. I am on day 17. I phoned FNB and was told an analysist will call me, No calls received. I phoned again and was told to email *** who eventually phoned me after 5 days just to tell me that he is not part of my case but my issue is the same as the case he is handling. He will check and phone me back. No call back. I visited the branch that can do nothing for me. I phoned the ***** department again today and was told that *** is now handling my case and I must email him which I did. In the mean time all my debit orders are being returned even though I have money in my account. I dont have food and Petrol and no other means to survive. How can a bank do this. If they froze the money being disputed I would not have a problem but it was returned immediately. What am I supposed to do. I am desperate.