ABSA take money from my account with permission

On Saturday morning I woke up to find an amount of R97.00 left in my bank account after ABSA unilaterally debited my account for an amount of R10 000.00 without my permission. Upon inquiring, I discovered that this amount was taken to offset an old debt that I have. Whilst I do acknowledge the debt and have since made an amicable arrangement with the attorneys to debit my account on a monthly basis until settled, ABSA has refused and has not given me my funds back. I am a father of 2 and am gainfully employed - how is ABSA expecting me to survive for the rest of the month with the R97,00 - Is this how ABSA treats it's customers with no regard for theirs and their families well being - just so that you know ABSA, the monies that you have taken was to sustain my family for the month, food, transport etc...how am I expected to survive without a cent for the rest of the month, could you please let me know.