FNB WRONG TRANSFER REFUND

My name is Ben, I made a wrong transfer to Swift Office Supplies on the 23 August, the account holder for Swift Office is Mr Wayne Mostert( ***), I called FNB after noticing that and FNB told me to take it up with the holder to reverse my cash( 1.500) I am not working and the cash was to pay for my kids grocery. I called Wayne and he said there is nothing he can do because his account is in negative which is not my problem..FNB does not do anything to protect the cash for its clients because this issue has been dragging from the 23th August I still have no feedback from either Wayne or FNB....This is indeed the bad service I ever experience with FNB. I received a call from one of their agent and he was very rude to me...I will not stop until I get my kids cash. FNB must help me getting my refund and I will be done with their poor service to the clients.

Why cant they tell Wayne to do the right thing, firstly Wayne is still responsible to pay that negative amount and my 1.500 was transferred by mistake to that account, why cant he paid me back from his personal accounts not the business account. Please I am in need of that money right now.

And I will cut all my ties with this FNB.