Telkom de*****ing customers and they don't care.

I bought a cellphone contract from Telkom, I received the phone, the sim was not activated and trying to get hold of them was also a nightmare. I was put on hold for hours while using my mtn minutes until eventually I sent an email. I also requested that they fetch the cellphone as their Sim was not active and we don't have a Telkom shop nearby. They send an email back saying that they have sent a courier to pick up the phone, the courier picked up the phone and they deducted the premium. After querying, they stopped the deductions. I called trying to get the refund, however they didn't attend to my queries from June up until September, when I queried again they started debiting my account. They canceled the contract but debited 10000 from my account. I have no explanation nothing. I can't even reverse the debit from my bank. They didn't even try to find out who is currently using my number and also tell me why my Sim was not active. They always told me my Sim was activated where else I never saw it or used any data from them. Meaning someone had access to the number that was allocated to me. I didn't even know what my number was supposed to be. I am very disappointed that Telkom and it's employees and subcontractors are de*****ing their customers.