Unauthorised instant money transfered my Acc

On 15th December 2015 early morning i received a call from Standard bank informing me that there are people who wants to withdraw from my account and they confirmed all my details.At about 11H18 R800.00 was withrdawn from my account and at about 11H22 R4200 was withrdrawn from my account.I rushed to the bank (Dundee Branch) and they told me to log a complain with ***** department and they told me it was instannt money transfer to 083 237 ***.I was suprised cause i don't use or have internet banking and cellphone banking.Today the 22nd i went to Dundee branch to speak to surpervisor and i was told they are not at the floor.I asked to speak to branch manager but he didn't bother to listen to me.I need my money to buy food for my children and no one is willing to help me at the branch and they are tellibng me to wait for 6 weeks.The rererence number they gave me was 2015.12.7728.I've been banking with Standard bank my for over 20 years and lost trust in them.Can somebody please call me before i take further actions.