Nonsense

I just received a call from some attorneys saying I owe Standard bank money on a cheque account that I apparently opened. they say I owe them more than R 3000.00. I currently have an account with standard bank that is not owing and is very active. The person who called me couldn't even tell me where and when I opened this account. such nonsense, I'm sick and tired of standard bank claiming that I owe them money while I have an account with them. firstly they should give their attorneys the correct information before having them call us and waste our time, secondly standard bank should call us first if something is wrong instead of handing us over to their legal department