FNB Handed me over for a new business account I never used you guys don't support Small businesses I am closing all my accounts today

I opened a business account that I never used at First National Bank and they sent me a letter of demand from attorneys. This is not a credit and they closed my account and handed me over to attorneys for R125.76 . You guys clearly do not support small businesses in South Africa. I am closing my business zero and my personal account today. I only opened accounts at Fnb because my husband worked there but now that he left I want nothing to do with this bank.Treat your clients like you doing us a favor.I paid the attorney now and I am going to your branch now to close my account. Good bye for good this time