Very Poor Service from Telkom

My cellphone contract came to an end 4 months ago. I am trying to cancel the contract but it has proven fruitless. My account gets debited every month which is more than R1300 currently because i cannot cancel the contract. I have called Telkom Customer care at ***. They told me to call 081861. Guess what? The number does not exist. Called Telkom customer care again and they told me to call ***. Waited for 11minutes before an agent decided to pick up the phone. I asked to assist in cancelling my contract and was told that i need to call the same number that i called this individual on and select option 5. I told him there is no option 5 and he informed me that i cannot call with a prepaid number, it has to be a contract phone, this is the reason why i cannot get option 5!!!!!! This is ridiculous!!! Quick to call an offer a contract but cannot assist with a cancelation!!!! Must i now go and take out a contract phone to call and cancel. NEVER IN MY LIFE WILL I DEAL WITH TELKOM AGAIN!!!!!!