********** transaction and not given accurate information

On the 26th February a ********** transaction done on my cheque account +- R14000 and was alerted immediately and i responded immediately to confirm that it was ********** then absa consultant called me and advised me they will temporarily lock my account, reverse the transactions immediately and further investigate but to my surprise when i checked the next day no money reversed tomorrow its the 28th there will be debit that need to go through from my account and where will i have money for those transactions whats frustrating who will be liable for bank charges as there will be insufficient funds when i made a follow-up at customer care i was referred to ***** department only to be told the process will take approximately +15 working days. I have never used Internet banking at all how possible did ********** access my account and process transactions on IB it can be inside job which shows our information with the bank is not protected. What a co incident that Absa was hacked weeks back then now my account this must be taken up with ombudsman and the regulator.