Worst Service ever from TELKOM

My Debt Counsellor has been trying to get a paid up letter from Telkom for some time now and they are not getting any response from them. I have emailed them as well and all I get is to please contact the Accounts department. When phoning the accounts department, you get connected and then an automated message service states that the mailbox is full and cannot take anymore messages at this time.

I require that Telkom either contact me or my Debt Counsellor regarding a paid-up letter for my account