Easton-Berry collection must fall disgrace

I settled my account on November 2017 as I was told by the call center agent that I had to pay R53 for the account to be closed,which I did pay and even got the payment notification and sent them the proof of payment,I can see from the statement that I was left with R47 on my account by end of October 2017. Now I'm asking for my paid up letter they telling me about outstanding balance of R500 which is crazy. .. I have settled the account. I have spoken to Wendy Supervisor who told me that the Truworths legal need to fix this for me to get my paid up letter and I called the legal department and spoke to Misxole who again told me that I must pay the balance and it is Easton-Berry who need to fix this. They taking me pillar to post and my call bill is going up just to get them to fix their mess. Someone failed to do their job there and now I'm affected.. I am very frustrated please sort this out and send me my paid up letter. Call me ********** 767 or send the letter **********