Unfairly treated Pathetic service

How unfairly and heartless can your own bank be suppose to be there and help you what a joke of a bank. My dad transferred R6200 odd into my account, from his Investec bank account. He wanted to use my account so long. I went to draw the money low and behold there was R4200 odd taken out of the account. Not even a a call or to notify me that my so called Bank took the money. How ********* can a bank be ad pathetic I know I had a credit card which I made a payment arrangement to pay R500 per month till the debt is done. I am not working at the moment and I only start with a new job 1/8/2015. The credit card went into arrears as a result of me being retrenched from my job. I have no problem with my bank taking R500 end of August for the payment of the credit card. My dad is a lawyer and said the way my bank did this was not proper procedure. I will not leave this like this I will seek legal action and go to the newspaper and tell all how you treat your clients. You have no right in taking money that W's not authorised to be taken and it's my dad's money too. I want this sorted out before the weekend and I will not come into the bank too. I am not leaving it like this