Inappropriate conduct

I downgraded to the R100.00 option from beginning of January ever since the down grade I've been having problems with the accounts dept. Instead of downgrading obly they also cancelled the stop order. Last week somebody called and told me my account is in arreas because the stop order has been cancelled,I explained to her what happened and she seemed to understand and she advised me to go pay cash for January and must worry about February because the stop order will be re instated so since it deducts on the 3rd it will to go through as it was still towards month end when we spoke. I was even asked to pay extra for January and I don't why but I obliged ,I paid on the same day that person called.<br> To my annoyance someone called me today to tell me my account is in arrears,what azrrears because I paid for January and they were supposed to deduct on the 3rd as per reassurance from the last person I spoke to and if they didn't deduct whose fault is it??? And why am I being harrassed for their faults. I am really fed up and I want this matter resolved ASAP