REFUSAL OF REVERSAL OF PAYMENT MADE INTO FNB ACCOUNT BY ERROR

i recently by error made a payment of R16 675 into an fnb account which belongs to one of our suppliers but the money was not meant for them. our company immediately notified our bank who tried to get fnb to recall the payment however to date nothing has happened. FNB is saying the client firstly declined the recall and when they communicated with him he advised that the money belonged to him and was asked to produce the proof and he then changed to say the money did not belong to him. this supplier has an office in pretoria but is based in the UK, on contacting his office they confirmed that he never reverses any payments made into his account and so many people have lost their money as a result of his refusal and not allowing the bank to reverse the money. emails and letter we sent to him and he did not respond being based in the UK there is no way of getting hold of him and fnb out rightly says there is nothing they can do to force him to reverse this money. my biggest challenge is the company has made me pay this money back and are making deductions on my salary of R5583 until the money is paid in full. i am a single parent i can not afford to loose this money my kids will not be able to go to school and they will not have any food and i wont be able to survive for the next three months, if i decide not to pay rent i will be homeless, if i decide not to buy food and pay rent my kids will starve. i am begging fnb management to please assist me i am really desparate