Suspended line over billing error

I have 4 contracts with Telkom and even thou my bill is debited from my account in September the I received an SMS letting me know that I was in arrears to the amount of R469. I called the call centre and a case was logged and I was informed that the error will be rectified in 72 working hours (which equates to 9 days). It is 11 days later and the error has not been rectified and Telkom can't seem to tell when it will be. I went to the store to cancel all my contracts with them and they informed that this would take 21 working days. I'm not sure if this is pure incompetence on the part of the individuals or that Telkom's business processes are just that stupid. I have kept a record of my conversations with the call centre agents: Telkom ref: ********** 5 Spoke to Lorraine on 26-09-2017 asked to speak to her manager who was available. Lorraine set an email to her manager to call me back. Spoke an agent on 29-09 and asked to speak to her manager Luthando Ncgobo who on a call. Luthando to call me back. Spoke to Kirsten on 04-10 who transferred me to Tony (team leader) to get Telkom collection to clear the account by end of today. Spoke to Tony again 05-10 and she informed me that she put in the request to the collections department but no response has been received. No ETA given. The worst part is their salespeople keep calling me to try to sell me new products, like that will ever happen.