OVER PAYMENT

1st of Sep my acc was debited for the monthly installment, around the 8th I overpay for what would be 5 installments in advance yet RCS still debits my account at the end of the month. Right now i call them to adjust 1 pmt as now it would seem i didn't pay the last installment. I'm disappointed at the fact that *****bo tells me straight that they cant DO ANYTHING!!!REALLY...you can't adjust your own System! I nicely tell her i don't mind paying month end of OCT but i'm not will to pay the double pmt and that they should adjust Sept's debit order from the R5000. When we don't pay our accounts we get phone calls and smes telling us about this, here i am being a responsible good customer showing face and they can't help me. NEVER 1nc have i owed RCS nor did i arrange for payment arrangements - there i go and overpay and no1 calls to ask or thank me about the payment and give the same attention to detail that they would if i missed a payment. I'm disgusted at the words 'W E CAN CHANGE IT ON THE SYSTEM\ so how do you ammend and fix payment arrangements if you cant change things on your system. Is this how you treat good customers by NOT GOING THE EXTRA MILE UPON REQUEST?I'm not rich"