Complaint logged on the 8th of Jan and on 16 Jan

I have logged 2 complaints regarding an outstanding Woolworths account which has been paid up in full in August of 2014. I have sent all the proof to this people, received a phone call from a Gentle man telling me they will look into it. After the second complaint I only received a email reply on the 26th of Jan 2015 regarding this telling me they are looking into it. It is now another week and I still have no response or feedback regarding this and my credit record is still reflecting badly due to this.<br> <br> Please can someone sort this out as a matter of urgency as I feel that this is unfair to have gone on for so long.<br>