poor customer service at absa

i deposited money to a certain account 5 days ago, the person claimed that the money wasn't reflecting on his account .the problem is the person is 500km away from me am not sure if he is telling the truth,i wanted to confirm or check if a mistake was made from either my side or the bank .i went back to the bank and they told me that they could never check the account since it was not in my name .i never asked them to give me him his account balance ,i just wanted to know if the money i deposited did reach his account. i had my deposit slip .all they had to do was to check if the money deposited in the account did go through . i went there with stamped copy of the deposit slip with my name and the account i was depositing to and yet they failed to resolve my issue i ended up leaving the bank not knowing if it was the banks fault or the person was just making empty claims about the money not being deposited in his account .