Atrocious customer support

I tried to apply for a voice line which would enable me to apply for adsl at a 3rdparty (they then apply with telkom on your behalf etc.). I need a voice line installed before I can request this with the 3rd party so I phoned telkom to get this arranged. First call was 2015/06/02, on this call sales told me that I still have R151 outstanding on my 2 year old cancelled account. I then assured them this isn't possible and after a long debate they looked into my account and realised that telkom actually meant to credit me that amount , thus they owe me that amount! They then told me they couldnt go ahead with the service activiation and basically gave me two options. 1. Wait for their credit department to sort the issue out (they couldnt tell me how long this would take) 2. I pay the R150 which would enable me to carry on with the service activation then they would credit my account with R300 since they actually owed me the original 150 and now I am paying an extra 150 . They assured me when I complete option 2 using the swift code I could just phone back and resolve the issue. Phoned back 4 times! Been told it would take 4 days now! I need the adsl for work , pathetic service!