Blaming Poor billing on Coricraft-9 Months

I settled Coricraft/RCS on 27/7/2014 at Vanderbijlpark branch as per settlement figures provided by them. Aug. to Dec. statements reflected R4.84 credit.Received my statement by email dated 12/1/2015, did not take notice as I SETTLED the acc. Then received a sms from RCS informing me my payment was overdue! You can imagine my dismay and confusion given I have settled my debt. On closer inspection of the statement, I noticed that the balance due was related to a purchase that I made on 13/4/2014.I called your call centre 16/2/2015 and spoke to Lauren, who advised that she would take the matter to her supervisor, Michaela Martin and will call me back!!! Called again on 17/2,was told Michaela not in.Called again on 18/2 and this time spoke to Michaela There has been no explanation to me as to why a purchase was not app**** to my account until nine months later! Are payments made by card not app**** instantly? I will not be liable for any arrear interest,service fees or insurance fees as well as future fees. I will pay back only capital Interest per EFT. NOTHING MORE.Require confirmation that NO adverse record against my name will be recorded and no further fees/Ins to be charged.