ABSA ATM RETAINED MY MONEY

On Saturday the 23rd of September i deposited an amount of R2000 to someone's Stokvel account till today she has not received the money. I did the deposit to the ATM, followed up the instruction. I punched the account no. on the screen and showed me the recepient and i confirmed the account no and it was indeed the correct one. The ATM ordered me to oinch in my cell no and ID no and i did. I inserted the R2000 amount in short and it went successful and i waited for the slip which never came out. Eventually i left without the slip. I went to ABSA Branch at Bree Street Joburg on the 27th Sept. I logged a complaint to the manager. She promised she would follow up the matter and she did follow up but to my surprise they say the system does not even showing that such amount was deposited. They promised me that they will continue to investigate till this day. This is really frustrating me and i have never experienced such a bad service before. I have deposited money to Standard Bank, FNB, Capitec and i have never experienced this like ABSA is doing to me. I am doing this as my last resort.