Monthly payment amounts

<p>For the past following months my monthly installment on my edgards account has been extremely high.</p> <p>In NOV '16: balance owing = R 3984.36 Installment = R834</p> <p>In DEC '16: balance owing = R3271.57 Installment = R833</p> <p>In JAN '17: balance owing = R2553.23 Installment = R833</p> <p>In FEB '17: balance owing = R1826.10 Installment = R834</p> <p>In MAR '17: balance owing = R1058.90 Installment = R832<br />Today, 12/04/2017 I received an email indicating my balance and installment as R1,160.93.</p> <p> </p> <p>How is it that every month my installment amount is R800 + when my balance is so low ? When I signed up my for my account it was explained to me that installment is calculated using my balance owing / 6 months (i am on the 6 month plan). Yet, for the past 4 months my installment amount was around the same amount. I refuse to pay this high installment when my balance is so low. </p>