Standard bank .

Standard bank is a ****. They came to my high school to make us open bank accounts and when i finally went to collect my bank card i was already owing them R30 which was fine and i paid it and i continued using it until i was did not use it for months and months. I was very shocked when i opened the app recently and i now owe them R800 from where? They have been deducting R60 everymonth and when i called them they say if you stay for long without using their bank they start deducting R60 and they refuse to close the bank account for me which will lead to the money accumulating. Mind you this is the card the did for high school students, how must i pay it and worse they refuse to close it.