Harrasment

I have just received a call from a Attorney to collect money for an outstanding Credit Card which i did not have with Standard bank, he told me that Standard Bank is pushing for this money and wants it paid fast, i also have an outstanding amount on a cheque account - now this is harrasment and i need someone in LAW to assist me with this - i closed my Standard bank account over 5- 10 years ago and now all of a sudden out of the ***ing blue i get harraset for money that i ow this pathetic bank, i hate standard bank and the fact i am being harresed for money on an account that i closed over 10 years ago is ridiculous - i want the proof that i owe this money, i cannot carry on like this getting my name slammed cause of a useless bank that leaves something and contacts you years later to get money from you!!! i am really feeling like this is harra*****t and i believe that this should be sorted out and closed immediately, i will not be paying money!! i need professional help or i will open a case up at the police station!