Withheld money on credit card

On 1 December, the day FNB was having their technical issues, I tried to book an Emirates flight with my credit card. It was declined saying that my bank had declined the transaction but I received an SMS saying that the amount was reserved from FNB. When I called the call centre they said there was nothing they could do to help because they were offline. Later that afternoon I got an SMS from FNB saying a "reversal" had been made but it took the same amount off again. On Saturday I called the call centre again and was told that it would be corrected between 1 - 5 hours, which never happened. On the Sunday I went into the Clearwater branch to try and speak to someone and was told no one could help me. I called the call centre again, and was told nothing could be done and that it was Emirate's fault. I have called Emirates and they have said nothing is sitting on their side because the bank declined the transaction. I complained on Twitter and on Monday Catherine Morgan called me to say they had looked into it and it was an error on their side, instead of reversing the transaction it took the same amount off and that they were looking into resolving it. I then recieved an email on Wednesday from her saying that the reversal had been done. But it was only for the one amount. She didnt even bother to check this. I responded and am still waiting for a reply, 3 days later. I contacted FNB on twitter again and was told that the matter had been resolved and am now waiting feedback on that since it hasn't been. It has now been over a week that FNB is holding onto money that belongs to me. I am getting married next month and I need that money to pay final suppliers. I am completely desperate and no one at FNB seems to think that helping a customer out is high on their list of responsibilities. The service I have recieved has been absolutely disgusting and keep getting told "I will look into it" and nothing ever goes further than that. I want someone at FNB to call me and tell me when this will be rectified