Incorrect Fibre Package

My issue began in July last year when I opted for a fibre 10 mbs 50 Gb package + unlimited telkom-to-telkom calls for R799. When I received my bill i was shocked that I was grossly overpaying and my bill was roughly R1200 not to mentioned the fact that I was being charged for each of my calls. I eventually discovere that the lady who sold me the package had put each item individually on my name and had not added the prmotional package. After 10-20 calls to the call centre I was repeatedly told that the people in activations don't have the correct permissions to move me onto the correct package and they will resolve the issue. 7 months have transpired while the interest on my account accumulates and no-one in Telkom is able to help me!! Despite who I call no-one is able to assist instead making promises with nothing changing from month to month. This is ridiculous and it seems that once you have a problem with Telkom you might as well give up trying to resolve it because the people that work there are incapable of helping!!! I've even been threatened with lawyers letters yet the fault is theirs. Totally crazy :-(