Angry Customer😡😡😡😡😡

Hi I am Ayanda Nzama my cellphone number is *** I paid my monthly installment of R600 on the 25 July 2022 and now it is closed they say I must pay 4 hundred and some change and this is ****ing me off like seriously.

What kind of company is this 😡😡😡😡😡 can they please fix this error, 😡😡😡😡😡