Huge ****ming bank

I can't belive i lost a whole R3000 and nedbank just told me there is nothing they can do,I Went to deposit the stove money on behalf of someone else,when I got the I pressed the cash deposit option then the ATM did not even give me an option to insert the account number,it simply opened then after a while gave me a slip,no verification nothing.I went inside the branch after I got the slip because I didn't enter an account number, the manager gave me the customer cares number and told me as the branch they can't do anything,I called and did everything they said I should do,did a follow up everyday and they kept on saying an ATM transaction dispute should be done as the recipients account number doesn't reflect the payment.I had to borrow money as this was a stove money I lost a whole R3000 with Nedbank I hate them so much