EDGARS WON'T CLOSE MY ACCOUNT

I have been trying to close my account with Edgars since the 26th of October 2018. I settled the account and called the call center to request a letter to confirm that the account will be closed. The lady promised to send me an email confirmation I never received it. I received a statement mid November informing me that I now owed R57 rands in service fees for this month. I called call centre again, the call centre agent promised to reverse the charges and close the account. I didn't receive confirmation that the account was closed once again. Today the 21st of November I call the call centre again requesting that the account must be closed. I am told it takes 48 hours to generate a letter of confirmation. I opted to pay the R23 that was now due on my account thinking the account can be closed immediately. I was also promised a letter of confirmation by midday. A letter I have not received until now. Everytime one calls the call centre it is no less than 30 minutes. EDGARS PLEASE CLOSE MY ACCOUNT AND SEND ME the letter. It is 1 month overdue.