RCS

I am struggling to close my Makro account with RCS. I have paid the account up last month (12/08/2020) and called them the same day to close the account only to be told I must call back after 3days which I did, then was told to call the following week. I eventually was told to call back on the 12/09/2020 the following month, after their payment run. All I want to do is just close my account but they keep giving me the run around and making pay for some monthly insurance. Which I don't see why I should as the account is paid up and I requested it to be closed. They also telling me the account can close only after 36days. Today is the 15 Sept I have been trying to call them but cannot seem to get through.