Cash withdrawal cancelled by ATM, money still deducted off my account

I went to a Standard Bank ATM in Atlas Mall in Boksburg. Tried to draw R3000. The atm gave me an error stating that "transaction cancelled due to technical error". I did NOT receive my R3000. I did not get a cancellation slip. The R3000 was deducted from my account and I was also charged a Cash withdrawal fee. I called and logged the *****/ complaint. The lady was very nice. But this is a MAJOR inconvenience to me. I have accounts that I need to pay tomorrow and that money is just gone. I have no slip to prove that I did not get the funds. I am so stressed and so angry. How long is this going to take to have this sorted.