ABSA ATM ate my money

Good day,

I deposited money to an ABSA ATM on the 30th of January. After the ATM counted the money, it said "Cash Deposit Unsuccessful". I was totally shocked and upset as this money was being deposited for an urgent reason. Since it was after trading hours of the bank, I returned to the bank branch the next day morning and provided with the customer service representative with my slip I received from the ATM the previous evening and explain the problem. I was told the money will be back in my account within a maximum of 3 days. I was assured and hence I left with the hope. It is a week now and I still have not received my money back. I am extremely upset and not sure what I must do. Please help. Kind Regards, Sandy