Why does it take 4 months to cancel my Telkom land line unprofessional processes at work here

I have for the past 4 months tried to cancel my Telkom land line and the first time I send the requested form to the designated email I was never responded to at all for a full month. So I still received an invoice from Telkom and was wondering why? I then checked my form and then to my surprise my account number was changed without knowledge or information as it showed a new account number on my invoice not my original account number ?!

Fast forward today many months have passed all was filled in and sent and now it seems Telkom has this broken system that surely must be ******* where they have you filling a form with all required details plus you need to have an Identity document sent with that to their cancelations email only to wait for a anonymous caller that has not time scheduled with you and draws his or her telephone numbers and call times from a hat.

If you dare call the 10210 they will not be able to do anything for you because they are not the mystery caller with mysterious times calling you so you will have to wait till you get a call and is lucky to accept such calls and spoken to their magician performing erratic calls. So far this person must be a myth because I never spoken to him so this is Telkom’s excuse to not cancel my agreement (professionalism at its best). Isaac at your Sandton mall branch was very helpful couldn't do anything for me either.

Telkom this is the only actions I require from you if you cannot complete this you and your company has failed me and I would need to explore other options as I am not interested in any excuses to this complaint , I just need my line cancelled no more excuses or magical performances except finalizing my cancelation.