Debiting of Account without consent

I'm in arrears with my \revolving loan"as I've been unemployed since January (notified FNB Premier Banking) of this. Nonetheless my account was handed over to their legal partners Blake & Associates . Made arrangements with them that I will notify them when I got employment and arrange a repayment plan. Last month I did as promised and arranged to pay R1 500 a month however beginning of this month there was a payment of R16+ into my account and as soon as it reflected FNB/Blake Associates debited R11 000+ without notifying me first. I have been trying to get them to reverse the funds but have so far been unsuccessful and the reason they give is they don't remember making an arrangement with me and besides they were not sure when there would be money in my account again so they debited what I owe them to date. I have other financial obligations and a family to look after and since I had been unemployed I those funds were to help me and my family till I'm out of the red. <br> <br> Please assist me to get my funds back Hello Peter. I need that money. <br> <br> Thanks in advance """