Suspended line very poor service

On the 4 /8/2015 I received my monthly statement from Telkom and I noticed that the amount that I needed to pay was incorrect I called in and I spoke to a call centre agent and she told me that she could see that there was a problem on the Acc she will open a case and she will send it to the billing department to fix it .i was thinking that it's good I picked up the problem and they will fix it ,the case was not attended to then I received a SMS that my line will be suspended if I don't pay a certain amount so I called in again and I was told that the case has not been attended too then on the 18/8/2015 my line was suspended.i called in many times and no one could see the problem except one lady her name is Cassandra Meyer she is the only one that seen the problem I am communicating with her at the moment since last week she is trying to fix my problem.i am very disappointed in Telkom because this is not the first time this is happening so my line is still suspended and it's almost end of the month for me to pay agin how can I pay for a mistake that I didn't make and today I did hear that the problem is still not solved with my Acc everything is on record how hard can it be to fix