Refusing to settle my account.

I called last month to enquire about my balance. I was told I don't owe meaning it's settled. I see they continue to debit small amounts when I phone again no out of no where I still have outstanding of a lousy R130. What stopped these ****** from debiting full amounts according to the payment arrangement of R250 is beyond me. What I'm hearing is as long as you don't call in to complain you will always owe them. Keeping South African customers indebted for good and listed on credit beret for lousy amounts. Sies I'm disgusted to say the least. My advice don't get credit with Truworths because you will regret it when hand you over to disgusting companies such as Easton-Berry Attorneys.