Withdrawn money that did not dispense

On the 14th of september i tried to withdraw R600 from the atm and the money reflected as withdrawn in my account but i did not get the money...the slip shows that the money withdrawn is R600 but the money Dispense is R000 so i went to the capitec office and explained the matter even showed them a receipt but i still havent gpt back my money....i am failing tp understand whats going on...or will i ever get the money...i have been banking with capitec ever since...but this incident makes me think twice