Avon - Credit Control Department Outrage

I settled my outstanding Avon account on the 9th of June 2017, which was confirmed via email by a Credit Control Clerk on the 10th of June 2017 as well as a Credit Control Supervisor on the 15th of June 2017. This past week I was declined for vehicle finance due to a default on my account from Avon. Not only did they not remove the listing from my name, they didn't even bother to update that the outstanding amount had been paid almost 11 months ago! After viewing my credit profile, the amount of R565 still reflects as outstanding. This is absolutely unacceptable. We are a family of 5 (myself, my wife, my 15 year old and 5 month old son and 10 year old daughter), now stranded after our vehicle overheated beyond full repair and unable to obtain a vehicle through the bank because Avon failed to do a simple task - updating the payment information.