Settlement Paid

I am so tired of the bad service and the up and downs RCS is making me do. I called in on the 4th to ask for a settlement amount and i settled my account same day. I sent through the proof of payment to ********** I still get stupid emails telling me i owe them and need to pay my montly installment. When i call these very rude customer service consultant who dont know what they doing dont want to help and close this account because its settle. Im not sure how you dont see my payment in your financial books because my card number is there is reference for the payment. So what i dont understand is you sitting with an amount of R1962.49 and you not allocating it to the correct card number as listed on the reference column. You have listed me on credit bureau as a bad payer but my account was settled on time, now my credit record is ruined because of your *********** and unprofessional work ethics.I NEED ANSWERS!!!!!!!!!!