Overcharged account

My account was unable to pay with my license when I told the shop cashier I lost my card and ID I was not helped.I called Mr price customer service on 7th March 22 to complain and to close my two accounts because I was not happy.

I was given both balances, Mr price and sheet street and told to call, after 24 hours of payment made in full 7 March 22. The next day, 8March 2022, I called customer care, but the phone was unreachable the voice phone machine said to leave my number for a return call.

They return a call to me, I told them that I would like to close all my accounts, but they told me that I need to pay an outstanding payment for the service and interest fee before they could close this account.

I asked why I should pay the other amount since I was given a full balance yesterday. Unfortunately, the consultant did not answer my question and put the line on hold for 10 minutes until the call was terminated. Email was send to customer care for cancellation but no respond till this date