Deposit made into incorrect account by error now it cant be reversed.

I have been using FNB for over 10 years,I have a funeral policy,life cover,cheque account,credit card,over draught amongst others with them,two or three years back as the economy of our countries went back and forth I was forced into a corner to join a debt Review program,as if that wasnt enough late last year I had to resign from a company I was permanently working for pending an internal investigation for non compliance with one of the companies policies,so currently unemployed I sent a friend to deposit R4400 in my cheque account to try and pay all my utilities, rent ,and try and survive for as long as I possibly can for the month of February and going into March,unfortunately my friend selects a credit card account for the deposit instead of cheque account which FNB says they cannot do anything about since that account was handed over to Hammond Pole Attorneys because I was no longer paying the credit card repayments agreement we had ,but that was since my employment was terminated in July last year,I then called Hammon Pole Attorneys and they told me they can refund me or do anything for me since they have already apparently allocated the funds to their creditors and other accounts.